Gr 11 Math Lit: Term Test 2
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Questions and Answers

What do double bar graphs display?

  • One bar for each category, with each bar representing a different interval
  • One bar for each interval, with each bar representing a different category of the data
  • Two bars for each category, with each bar representing a different interval
  • Two bars for each interval, with each bar representing a different category of the data (correct)

    • What does the height of each bar in a double bar graph correspond to?

  • The category of the data
  • The interval of the data
  • The frequency of a category (correct)
  • The total frequency of the data

    • What is the purpose of a vertical stack graph?

  • To compare the type of relationship between two different variables or quantities
  • To show the total frequency of two combined categories and illustrate the different components making up this total frequency (correct)
  • To identify trends in a data set over time
  • To compare the frequency values for different categories over various intervals

    • What does a scatter plot graph display?

    <p>The relationship between two different variables or quantities</p> Signup and view all the answers

    What is correlation?

    <p>The relationship or pattern between two variables</p> Signup and view all the answers

    What are outliers in a scatter plot?

    <p>Points in the data that deviate significantly from the other points</p> Signup and view all the answers

    What is the purpose of sorting data?

    <p>To make sense of data by organizing it in a manageable and understandable format</p> Signup and view all the answers

    What is a frequency table used for?

    <p>To summarize how often different values appear in a data set, allowing for comparisons</p> Signup and view all the answers

    What is the first step in creating a frequency table?

    <p>Identifying the class intervals needed to group the data</p> Signup and view all the answers

    What is the purpose of two line graphs on the same set of axes?

    <p>To compare changes in different data sets over time and how they change relative to each other</p> Signup and view all the answers

    What is the primary purpose of posing questions in the statistical process?

    <p>To justify data collection and guide the data collection process</p> Signup and view all the answers

    What is the main difference between a population and a sample?

    <p>A population is the entire group, while a sample is a smaller subset</p> Signup and view all the answers

    What is a survey in the context of data collection?

    <p>The process of collecting data from a sample or population</p> Signup and view all the answers

    Why is it important to ensure a sample is representative of the population?

    <p>To avoid bias and ensure the sample reflects the same features and characteristics as the population</p> Signup and view all the answers

    What is the purpose of a questionnaire in data collection?

    <p>To gather information about a group or their opinions on a particular topic</p> Signup and view all the answers

    What is the primary purpose of a recording sheet in data collection?

    <p>To record the frequency of events, the duration of events, or specific features of events</p> Signup and view all the answers

    What is the first step in the statistical process?

    <p>Posing questions that justify data collection and guide the data collection process</p> Signup and view all the answers

    Why is it important to choose a sample size that is large enough?

    <p>To provide an accurate reflection of the population</p> Signup and view all the answers

    What is the first step in the data collection process?

    <p>Select the data collection instrument</p> Signup and view all the answers

    What is the formula for calculating the mean?

    <p>Mean = Sum of values / Number of values</p> Signup and view all the answers

    What is the advantage of using the median as a measure of central tendency?

    <p>It is not affected by outliers</p> Signup and view all the answers

    What is the purpose of the mode in data analysis?

    <p>To identify the most frequently occurring value</p> Signup and view all the answers

    What is the range of a data set?

    <p>The difference between the highest and lowest values</p> Signup and view all the answers

    Why is the median a better measure of central tendency than the mean in the presence of outliers?

    <p>Because the median is not affected by outliers</p> Signup and view all the answers

    What is the impact of outliers on the range of a data set?

    <p>They increase the range</p> Signup and view all the answers

    What is the first step in summarizing data?

    <p>Calculate the mean</p> Signup and view all the answers

    What is the primary purpose of choosing class intervals?

    <p>To cover the range of the data and make it easier to analyze</p> Signup and view all the answers

    What is the purpose of comparing the measures of central tendency?

    <p>To determine the best measure to use</p> Signup and view all the answers

    What is the main consideration when choosing a measure of central tendency?

    <p>The presence of outliers in the data</p> Signup and view all the answers

    What is the next step after counting the number of data points that fall into each class interval?

    <p>Create a table with separate columns</p> Signup and view all the answers

    Why is it necessary to calculate percentage values?

    <p>To compare data with different totals</p> Signup and view all the answers

    What is the formula to calculate the percentage of data points in a specific class interval?

    <p>Percentage = (Frequency of the interval / Total number of data points) × 100</p> Signup and view all the answers

    What is the result of the calculation: (2 / 24) × 100?

    <p>8</p> Signup and view all the answers

    What is the primary purpose of posing questions in the data collection process?

    <p>To guide the data collection process and inform the methods used for data collection</p> Signup and view all the answers

    What is the main difference between a population and a sample?

    <p>A sample is a smaller subset of a population</p> Signup and view all the answers

    What is the purpose of a questionnaire in data collection?

    <p>To gather information about a group or their opinions on a particular topic</p> Signup and view all the answers

    What is the primary purpose of a recording sheet in data collection?

    <p>To record the frequency of events, the duration of events, or specific features of events</p> Signup and view all the answers

    Why is it important to ensure a sample is representative of the population?

    <p>To avoid bias in the data collection process</p> Signup and view all the answers

    What is the impact of a small sample size on the data collection process?

    <p>It leads to biased or skewed data</p> Signup and view all the answers

    What is the first step in the statistical process?

    <p>Posing questions</p> Signup and view all the answers

    What is the purpose of developing a data collection instrument?

    <p>To choose the most effective tool for collecting the data</p> Signup and view all the answers

    What is the primary purpose of defining the population and sample?

    <p>To select a representative sample that reflects the characteristics of the population</p> Signup and view all the answers

    What is the measure of central tendency that is most affected by outliers?

    <p>Mean</p> Signup and view all the answers

    What is the purpose of calculating the range of a data set?

    <p>To determine the spread of the data</p> Signup and view all the answers

    When would you choose to use the median as a measure of central tendency?

    <p>When the data set is skewed</p> Signup and view all the answers

    What is the first step in summarizing data?

    <p>Calculate the mean</p> Signup and view all the answers

    What can affect the accuracy of the data collection process?

    <p>Biased factors</p> Signup and view all the answers

    What is the purpose of using a questionnaire in data collection?

    <p>To ask questions that cover all necessary categories</p> Signup and view all the answers

    Why is it important to choose a representative sample?

    <p>To ensure the sample accurately represents the population</p> Signup and view all the answers

    What is the purpose of comparing the measures of central tendency?

    <p>To assess the measures in the context of the data set</p> Signup and view all the answers

    What is the main consideration when choosing a measure of central tendency?

    <p>The presence of outliers</p> Signup and view all the answers

    What is the primary purpose of a double bar graph?

    <p>To compare the frequency values of two categories over various intervals.</p> Signup and view all the answers

    What is the primary purpose of a vertical stack graph?

    <p>To show the total frequency of two combined categories.</p> Signup and view all the answers

    What is the purpose of a pie-of-pie chart?

    <p>To display the components of a main category in a larger pie chart.</p> Signup and view all the answers

    What is the primary purpose of a two-line graph on the same set of axes?

    <p>To compare changes in different data sets over time.</p> Signup and view all the answers

    What is the primary purpose of a scatter plot graph?

    <p>To identify patterns in the relationship between two variables.</p> Signup and view all the answers

    What is the result of a strong correlation between two variables?

    <p>A clear pattern indicating a strong correlation.</p> Signup and view all the answers

    What is the purpose of sorting data?

    <p>To organize the data into a manageable and understandable format.</p> Signup and view all the answers

    What is the purpose of a frequency table?

    <p>To summarize how often different values appear in a data set.</p> Signup and view all the answers

    What is the primary purpose of class intervals in a frequency table?

    <p>To group large sets of data into more manageable categories.</p> Signup and view all the answers

    What is the purpose of sorting data according to two criteria?

    <p>To organize the data into a manageable and understandable format for each category.</p> Signup and view all the answers

    What is the purpose of creating a table with separate columns for each category?

    <p>To record the frequencies and facilitate comparison</p> Signup and view all the answers

    Why is it necessary to calculate percentage values in the table?

    <p>To standardize comparisons when the total number of data points in different categories varies</p> Signup and view all the answers

    What is the result of dividing the frequency of a class interval by the total number of data points?

    <p>The proportion of data points in that interval</p> Signup and view all the answers

    What is the next step after counting the number of data points that fall into each class interval?

    <p>Calculating the percentage values</p> Signup and view all the answers

    What do class intervals help in doing?

    <p>Covering the range of the data and making it easier to analyze</p> Signup and view all the answers

    What is the primary purpose of posing questions in the statistical process?

    <p>To guide the data collection process and justify data collection</p> Signup and view all the answers

    What is a characteristic of a representative sample?

    <p>It reflects the same features and characteristics as the population</p> Signup and view all the answers

    What is the main consideration when choosing a data collection instrument?

    <p>The nature of the group or objects from which data will be collected</p> Signup and view all the answers

    What can result from a small sample size?

    <p>Skewed or biased data</p> Signup and view all the answers

    What is the purpose of a survey in data collection?

    <p>To collect data from a sample</p> Signup and view all the answers

    What is the first step in developing a data collection instrument?

    <p>Posing questions that justify data collection</p> Signup and view all the answers

    What is the purpose of ensuring a sample is representative of the population?

    <p>To reduce bias in the sample</p> Signup and view all the answers

    What is a questionnaire used for in data collection?

    <p>To gather information about a group or their opinions</p> Signup and view all the answers

    What should be considered when selecting a data collection instrument?

    <p>The nature of the data and the target population</p> Signup and view all the answers

    What is the purpose of ensuring a sample is representative of the population?

    <p>To avoid bias in the data collection process</p> Signup and view all the answers

    What is the formula for calculating the mean?

    <p>Sum of all values divided by the number of values</p> Signup and view all the answers

    What is the advantage of using the median as a measure of central tendency?

    <p>It is less affected by outliers than the mean</p> Signup and view all the answers

    What is the purpose of calculating the range of a data set?

    <p>To measure the spread of the data set</p> Signup and view all the answers

    When would you choose to use the mode as a measure of central tendency?

    <p>When the data set is categorical</p> Signup and view all the answers

    What is the impact of outliers on the mean?

    <p>They make the mean less accurate</p> Signup and view all the answers

    What is the purpose of summarizing data?

    <p>To provide a concise overview of the data set</p> Signup and view all the answers

    What is the primary purpose of comparing the measures of central tendency?

    <p>To determine the best measure of central tendency for the data set</p> Signup and view all the answers

    What is the main consideration when choosing a measure of central tendency?

    <p>The presence of outliers in the data set</p> Signup and view all the answers

    What is the purpose of choosing class intervals in data analysis?

    <p>To make it easier to analyse the data</p> Signup and view all the answers

    What is the formula to calculate the percentage of data points in a specific class interval?

    <p>(Frequency of the interval / Total number of data points) × 100</p> Signup and view all the answers

    What is the purpose of calculating the percentage values in a frequency table?

    <p>To standardize comparisons, especially when the total number of data points in different categories varies</p> Signup and view all the answers

    What is the result of the calculation: (2 / 24) × 100?

    <p>8</p> Signup and view all the answers

    What is the next step after counting the number of data points that fall into each class interval?

    <p>Calculating the percentage values</p> Signup and view all the answers

    What is the main purpose of using a double bar graph?

    <p>To compare the frequency values of two categories over different intervals.</p> Signup and view all the answers

    What is the advantage of using a vertical stack graph?

    <p>It is useful for showing the total frequency of two combined categories.</p> Signup and view all the answers

    What is the main purpose of a pie-of-pie chart?

    <p>To illustrate the components of the main categories in a larger pie chart.</p> Signup and view all the answers

    What is the advantage of using two line graphs on the same set of axes?

    <p>It allows for easy comparison of changes in different data sets over time.</p> Signup and view all the answers

    What is the main purpose of a scatter plot graph?

    <p>To identify patterns in the relationship between two variables.</p> Signup and view all the answers

    What is the main purpose of sorting data?

    <p>To organize data into a manageable and understandable format.</p> Signup and view all the answers

    What is the purpose of creating a frequency table?

    <p>To summarize how often different values appear in a data set.</p> Signup and view all the answers

    What is the purpose of using class intervals in a frequency table?

    <p>To group large sets of data into more manageable categories.</p> Signup and view all the answers

    What is the purpose of calculating percentage values in a frequency table?

    <p>To make it easier to compare the frequency values of different categories.</p> Signup and view all the answers

    What is the purpose of arranging data in a particular order?

    <p>To organize data into a manageable and understandable format.</p> Signup and view all the answers

    What is the primary purpose of posing questions in the statistical process?

    <p>To guide the data collection process and inform the methods used for data collection, organization, representation, and measurement</p> Signup and view all the answers

    What is the main consideration when developing a data collection instrument?

    <p>The nature of the group or objects from which data will be collected</p> Signup and view all the answers

    What is the purpose of ensuring a sample is representative of the population?

    <p>To avoid bias and ensure the sample reflects the same features and characteristics as the population</p> Signup and view all the answers

    What is the main difference between a questionnaire and a recording sheet?

    <p>The person who fills out the instrument</p> Signup and view all the answers

    What is the impact of a small sample size on the data collection process?

    <p>It decreases the accuracy of the data</p> Signup and view all the answers

    What is the primary purpose of defining the population and sample?

    <p>To ensure the sample is representative of the population</p> Signup and view all the answers

    What is the advantage of using a questionnaire in data collection?

    <p>It allows respondents to provide more detailed information</p> Signup and view all the answers

    What is the purpose of using a recording sheet in data collection?

    <p>To record the frequency of events</p> Signup and view all the answers

    What is the primary purpose of using a double bar graph?

    <p>To compare the frequency values of different categories over various intervals.</p> Signup and view all the answers

    What is the main difference between a vertical stack graph and a bar-of-pie chart?

    <p>The way they are constructed.</p> Signup and view all the answers

    What is the purpose of choosing class intervals in data analysis?

    <p>To cover the range of the data and make it easier to analyze</p> Signup and view all the answers

    What is the primary purpose of using a two line graph on the same set of axes?

    <p>To compare changes in different data sets over time.</p> Signup and view all the answers

    What is the next step after counting the number of data points that fall into each class interval?

    <p>To create a table with separate columns for each category</p> Signup and view all the answers

    Why is it necessary to calculate percentage values in data analysis?

    <p>To standardize comparisons, especially when the total number of data points in different categories varies</p> Signup and view all the answers

    What type of graph is used to compare the type of relationship between two different variables?

    <p>Scatter plot graph</p> Signup and view all the answers

    What is the formula to calculate the percentage of data points in a specific class interval?

    <p>Percentage = (Frequency of the interval / Total number of data points) × 100</p> Signup and view all the answers

    What is the primary purpose of sorting data?

    <p>To analyze the data by organizing it into a structured format.</p> Signup and view all the answers

    What is the purpose of creating a frequency table?

    <p>To summarize how often different values appear in a data set.</p> Signup and view all the answers

    What is the result of the calculation: (2 / 24) × 100?

    <p>12.5%</p> Signup and view all the answers

    What is the purpose of class intervals in frequency tables?

    <p>To group large sets of data into more manageable categories.</p> Signup and view all the answers

    What is the primary purpose of using a scatter plot graph?

    <p>To identify patterns in the relationship between variables.</p> Signup and view all the answers

    What is the primary purpose of using a pie-of-pie chart?

    <p>To display the components of the main categories in a larger pie chart.</p> Signup and view all the answers

    What is the primary purpose of using a bar-of-pie chart?

    <p>To show a comparison between two different categories of data.</p> Signup and view all the answers

    What is the primary purpose of selecting a representative sample?

    <p>To ensure the data collection process is free from bias</p> Signup and view all the answers

    When is the mean a suitable measure of central tendency?

    <p>When there are no outliers</p> Signup and view all the answers

    What is the purpose of calculating the range of a data set?

    <p>To measure the spread of the data</p> Signup and view all the answers

    What is the advantage of using the median as a measure of central tendency?

    <p>It is less affected by outliers</p> Signup and view all the answers

    Why is it important to ensure data collection is free from bias?

    <p>To ensure accurate and reliable results</p> Signup and view all the answers

    What is the primary purpose of defining the population and sample?

    <p>To identify the target population and representative sample</p> Signup and view all the answers

    What is the impact of outliers on the mean?

    <p>They skew the mean</p> Signup and view all the answers

    What is the purpose of summarizing data?

    <p>To describe the characteristics of the data</p> Signup and view all the answers

    What is the measure of central tendency that is most affected by outliers?

    <p>Mean</p> Signup and view all the answers

    What is the primary purpose of comparing the measures of central tendency?

    <p>To choose the most appropriate measure for the data</p> Signup and view all the answers

    What is the primary purpose of creating a frequency table in the statistical process?

    <p>To organize and summarize the data to make it easier to analyze</p> Signup and view all the answers

    Why is it important to standardize comparisons by calculating percentage values?

    <p>Because the total number of data points in different categories often varies</p> Signup and view all the answers

    What is the benefit of choosing class intervals that cover the range of the data?

    <p>It makes the data easier to analyze and summarize</p> Signup and view all the answers

    What is the next step after counting the frequency of data points in each class interval?

    <p>Calculating the percentage values</p> Signup and view all the answers

    What is the purpose of calculating the percentage of data points in a specific class interval?

    <p>To standardize comparisons and make it easier to analyze the data</p> Signup and view all the answers

    What is the primary purpose of posing questions in the statistical process?

    <p>To guide the data collection process and inform the methods used for data collection, organization, representation, and measurement</p> Signup and view all the answers

    What is the main difference between a questionnaire and a recording sheet?

    <p>A questionnaire is used to collect data from respondents, while a recording sheet is used to record data by the researcher</p> Signup and view all the answers

    What is the purpose of ensuring a sample is representative of the population?

    <p>To avoid bias in the data collection process</p> Signup and view all the answers

    What is the impact of a small sample size on the data collection process?

    <p>It decreases the accuracy of the data</p> Signup and view all the answers

    What is the purpose of developing a data collection instrument?

    <p>To choose the most effective tool for collecting the data</p> Signup and view all the answers

    What is the primary purpose of defining the population and sample?

    <p>To identify the type of data needed</p> Signup and view all the answers

    What is the main consideration when choosing a measure of central tendency?

    <p>The presence of outliers</p> Signup and view all the answers

    What is the impact of bias on the data collection process?

    <p>It decreases the accuracy of the data</p> Signup and view all the answers

    What is the main consideration when selecting a data collection instrument?

    <p>The nature of the data and the target population</p> Signup and view all the answers

    What is the purpose of calculating the median in a data set?

    <p>To determine the middle value in a sorted data set</p> Signup and view all the answers

    Why is it important to ensure that the sample is representative of the population?

    <p>To ensure that the data collection is free from bias</p> Signup and view all the answers

    What is the formula to calculate the mean of a data set?

    <p>Sum of values / number of values</p> Signup and view all the answers

    What is the purpose of summarizing data?

    <p>To describe the central tendency and spread of the data</p> Signup and view all the answers

    What is the effect of outliers on the mean of a data set?

    <p>It increases the mean</p> Signup and view all the answers

    What is the primary purpose of calculating the range of a data set?

    <p>To describe the spread of the data</p> Signup and view all the answers

    When would you choose to use the mode as a measure of central tendency?

    <p>When the data is categorical or nominal</p> Signup and view all the answers

    What is the purpose of comparing the measures of central tendency?

    <p>To determine the best measure of central tendency</p> Signup and view all the answers

    What is the impact of a small sample size on the data collection process?

    <p>It increases the risk of biased results</p> Signup and view all the answers

    What type of graph is most useful for comparing the frequency values for different categories over various intervals?

    <p>Double bar graphs</p> Signup and view all the answers

    What type of graph is used to show a comparison between different components of data, especially when each component comprises more categories?

    <p>Pie-of-Pie charts</p> Signup and view all the answers

    What is the purpose of sorting data in a particular order?

    <p>To make sense of the data by organizing it in a manageable and understandable format</p> Signup and view all the answers

    What is the frequency value in a frequency table?

    <p>The number of times a particular piece of data appears in a data set</p> Signup and view all the answers

    What type of graph is used to identify patterns in the relationship between two variables or quantities?

    <p>Scatter plot graphs</p> Signup and view all the answers

    What is the purpose of using class intervals in frequency tables?

    <p>To group large sets of data into more manageable categories</p> Signup and view all the answers

    What is the purpose of creating a frequency table?

    <p>To summarize how often different values appear in a data set</p> Signup and view all the answers

    What is the purpose of using two line graphs on the same set of axes?

    <p>To compare changes in different data sets over time</p> Signup and view all the answers

    What is the purpose of sorting data according to two criteria?

    <p>To compare the height distribution within each gender group</p> Signup and view all the answers

    What is the purpose of using vertical stack graphs?

    <p>To show the total frequency of two combined categories and illustrate the different components making up this total frequency</p> Signup and view all the answers

    What is the main purpose of posing questions in the statistical process?

    <p>To guide the data collection process and determine the type of data needed</p> Signup and view all the answers

    What is the primary consideration when developing a data collection instrument?

    <p>The type of data to be collected</p> Signup and view all the answers

    What is the consequence of having a small sample size?

    <p>The data may be skewed or biased</p> Signup and view all the answers

    What is the purpose of a recording sheet?

    <p>To record the frequency of events or specific features of events</p> Signup and view all the answers

    What is the primary purpose of ensuring a sample is representative of the population?

    <p>To avoid bias in the data collection process</p> Signup and view all the answers

    What is the main difference between a population and a sample?

    <p>A population is the entire group, while a sample is a smaller subset</p> Signup and view all the answers

    What is the purpose of developing a data collection instrument?

    <p>To choose the most effective tool for collecting the data</p> Signup and view all the answers

    What is the impact of bias on the data collection process?

    <p>It decreases the accuracy of the data</p> Signup and view all the answers

    What is the primary purpose of creating a table with separate columns for each category in the statistical process?

    <p>To record the frequencies and standardize comparisons</p> Signup and view all the answers

    Why are class intervals chosen to cover the range of the data?

    <p>To make it easier to analyze the data and identify patterns</p> Signup and view all the answers

    What is the next step after counting the number of data points that fall into each class interval?

    <p>To calculate the percentage values for each frequency</p> Signup and view all the answers

    What is the purpose of calculating percentage values in the statistical process?

    <p>To standardize comparisons, especially when the total number of data points in different categories varies</p> Signup and view all the answers

    What is the formula to calculate the percentage of data points in a specific class interval?

    <p>(Frequency of the interval / Total number of data points) × 100</p> Signup and view all the answers

    What should be considered when selecting a data collection instrument?

    <p>The type of data being collected</p> Signup and view all the answers

    What is the purpose of identifying the population for data collection?

    <p>To select a sample that is representative of the population</p> Signup and view all the answers

    What is the formula for calculating the mean?

    <p>(Sum of values) / (Number of values)</p> Signup and view all the answers

    What is the advantage of using the median as a measure of central tendency?

    <p>It is not affected by outliers</p> Signup and view all the answers

    What is the purpose of calculating the range of a data set?

    <p>To measure the spread of the data</p> Signup and view all the answers

    When is it more appropriate to use the median as a measure of central tendency?

    <p>When the data set has outliers</p> Signup and view all the answers

    What is the purpose of summarizing data?

    <p>To present data in a meaningful way</p> Signup and view all the answers

    What can affect the accuracy of the data collection process?

    <p>Bias in the data collection instrument</p> Signup and view all the answers

    Why is it important to ensure a sample is representative of the population?

    <p>To increase the accuracy of the data collection process</p> Signup and view all the answers

    What is the purpose of choosing a data collection instrument?

    <p>To collect data that is relevant to the research question</p> Signup and view all the answers

    What is the primary purpose of a double bar graph?

    <p>To display the frequency values for different categories over various intervals</p> Signup and view all the answers

    What is the main benefit of using a vertical stack graph?

    <p>To display the components of the total frequency</p> Signup and view all the answers

    What type of graph is used to display the components of the main categories in a larger pie chart?

    <p>Pie-of-Pie Chart</p> Signup and view all the answers

    What is the primary purpose of using two line graphs on the same set of axes?

    <p>To show the changes in a data set over time</p> Signup and view all the answers

    What type of graph is used to identify the type of relationship between two variables?

    <p>Scatter Plot Graph</p> Signup and view all the answers

    What is the primary purpose of sorting data?

    <p>To organize the data into a manageable format</p> Signup and view all the answers

    What is the purpose of creating a frequency table?

    <p>To summarize how often different values appear in a data set</p> Signup and view all the answers

    What is the primary benefit of using a scatter plot graph?

    <p>To identify the correlation between two variables</p> Signup and view all the answers

    What type of data is sorted in ascending or descending order based on numerical values?

    <p>Numerical data</p> Signup and view all the answers

    What is the primary purpose of using class intervals?

    <p>To group large sets of data into more manageable categories</p> Signup and view all the answers

    What is the primary purpose of posing questions in the statistical process?

    <p>To guide the data collection process and determine the type of data needed</p> Signup and view all the answers

    What is the key consideration when developing a data collection instrument?

    <p>The nature of the group or objects from which data will be collected</p> Signup and view all the answers

    What is the consequence of a small sample size?

    <p>The data may be skewed or biased</p> Signup and view all the answers

    What is the purpose of a recording sheet in data collection?

    <p>To record the frequency of events, the duration of events, or specific features of events</p> Signup and view all the answers

    What is the primary purpose of ensuring a sample is representative of the population?

    <p>To avoid bias and ensure the sample reflects the same features and characteristics as the population</p> Signup and view all the answers

    What is the key consideration when choosing a sample size?

    <p>The number of data points needed to provide an accurate reflection of the population</p> Signup and view all the answers

    What is the primary purpose of developing a data collection instrument?

    <p>To choose the most effective tool for collecting the data</p> Signup and view all the answers

    What is the consequence of not ensuring a sample is representative of the population?

    <p>The data may be biased or skewed</p> Signup and view all the answers

    What is the primary purpose of creating a frequency table with separate columns for each category?

    <p>To compare the frequency of data points between different categories</p> Signup and view all the answers

    Why is it necessary to calculate percentage values in a frequency table?

    <p>To standardize comparisons between different categories with varying total numbers of data points</p> Signup and view all the answers

    What is the outcome of calculating the percentage of data points in a specific class interval?

    <p>A percentage value</p> Signup and view all the answers

    What is the advantage of using a frequency table with separate columns for each category?

    <p>It enables comparison of frequency of data points between different categories</p> Signup and view all the answers

    What is the purpose of choosing class intervals that cover the range of the data?

    <p>To make it easier to analyze the data</p> Signup and view all the answers

    Which type of graph is most suitable for comparing the frequency values for different categories over various intervals?

    <p>Double bar graph</p> Signup and view all the answers

    What is the primary purpose of a pie-of-pie chart?

    <p>To compare different components of data</p> Signup and view all the answers

    Which type of graph is most suitable for identifying trends in the data over time?

    <p>Two line graphs on the same set of axes</p> Signup and view all the answers

    What is the purpose of sorting data in statistical analysis?

    <p>To organize the data into a manageable format</p> Signup and view all the answers

    What is the purpose of creating a frequency table?

    <p>To summarize how often different values appear in a data set</p> Signup and view all the answers

    What is the primary purpose of using class intervals in a frequency table?

    <p>To group large sets of data into more manageable categories</p> Signup and view all the answers

    What is the purpose of comparing the measures of central tendency?

    <p>To determine which measure is most affected by outliers</p> Signup and view all the answers

    What is the primary purpose of calculating the range of a data set?

    <p>To determine the spread of the data</p> Signup and view all the answers

    What is the primary purpose of using a scatter plot graph?

    <p>To identify patterns in the relationship between variables</p> Signup and view all the answers

    What is the purpose of identifying outliers in a data set?

    <p>To understand exceptions to the identified trends</p> Signup and view all the answers

    What is the primary advantage of using the median as a measure of central tendency over the mean?

    <p>It is less affected by outliers.</p> Signup and view all the answers

    What is the primary purpose of calculating the range of a data set?

    <p>To determine the spread of the data.</p> Signup and view all the answers

    What is the primary disadvantage of using the mode as a measure of central tendency?

    <p>It may not represent the majority of the data.</p> Signup and view all the answers

    What is the primary purpose of summarizing data?

    <p>To identify patterns and trends in the data.</p> Signup and view all the answers

    What is the primary advantage of using a questionnaire in data collection?

    <p>It enables the collection of both qualitative and quantitative data.</p> Signup and view all the answers

    What is the primary purpose of selecting a representative sample?

    <p>To ensure the sample accurately reflects the population.</p> Signup and view all the answers

    What is the primary impact of outliers on the range of a data set?

    <p>It increases the range of the data.</p> Signup and view all the answers

    What is the primary purpose of designing a data collection instrument?

    <p>To ensure the data collection is free from bias.</p> Signup and view all the answers

    What is the primary consideration when choosing a measure of central tendency?

    <p>The presence of outliers.</p> Signup and view all the answers

    What is the primary purpose of comparing the measures of central tendency?

    <p>To select the most appropriate measure for the data.</p> Signup and view all the answers

    What is the primary purpose of creating a table with separate columns for each category while constructing a frequency table?

    <p>To make it easier to compare frequencies between categories</p> Signup and view all the answers

    What is the primary purpose of ensuring data collection is free from bias?

    <p>To ensure the sample accurately represents the population</p> Signup and view all the answers

    Why is it necessary to calculate percentage values while constructing a frequency table?

    <p>To facilitate comparison between categories with different total numbers of data points</p> Signup and view all the answers

    When would you choose to use the mean as a measure of central tendency?

    <p>When the data set has no extreme values and the values are relatively evenly distributed</p> Signup and view all the answers

    What is the primary purpose of identifying the mode in a data set?

    <p>To identify the most frequently occurring value</p> Signup and view all the answers

    What is the main consideration when choosing class intervals for a frequency table?

    <p>The class intervals should cover the entire range of the data</p> Signup and view all the answers

    What can affect the accuracy of the data collection process?

    <p>All of the above</p> Signup and view all the answers

    What is the result of the calculation: (Frequency of the interval / Total number of data points) × 100?

    <p>The percentage of data points in a specific class interval</p> Signup and view all the answers

    What is the purpose of the percentage calculation in the context of a frequency table?

    <p>To standardize comparisons between categories with different total numbers of data points</p> Signup and view all the answers

    What is the primary purpose of defining the population and sample?

    <p>To identify the target population for data collection</p> Signup and view all the answers

    What is the impact of outliers on the range of a data set?

    <p>Outliers increase the range</p> Signup and view all the answers

    What is the purpose of calculating the percentage values in a frequency table?

    <p>To compare the frequency of each class interval</p> Signup and view all the answers

    What is the primary purpose of choosing class intervals in a frequency table?

    <p>To group the data into meaningful categories</p> Signup and view all the answers

    When would you choose to use a recording sheet as a data collection instrument?

    <p>When observing behavior or events</p> Signup and view all the answers

    What is the primary purpose of summarizing data?

    <p>To organize and describe the main features of the data</p> Signup and view all the answers

    What is the primary purpose of posing questions in the statistical process?

    <p>To determine the type of data needed and guide the data collection process</p> Signup and view all the answers

    What is the main consideration when developing a data collection instrument?

    <p>The nature of the group or objects from which data will be collected</p> Signup and view all the answers

    What is the effect of a small sample size on the data collection process?

    <p>It decreases the accuracy of the data</p> Signup and view all the answers

    What is the primary purpose of using a questionnaire in data collection?

    <p>To gather information about a group or their opinions on a particular topic</p> Signup and view all the answers

    Why is it important to ensure a sample is representative of the population?

    <p>To avoid bias in the data collection process</p> Signup and view all the answers

    What is the purpose of posing questions in the data collection process?

    <p>To determine the type of data to be collected</p> Signup and view all the answers

    What is the main consideration when choosing a sample size?

    <p>The need for a representative sample</p> Signup and view all the answers

    What is the effect of bias on the data collection process?

    <p>It decreases the accuracy of the data</p> Signup and view all the answers

    Which type of graph is most suitable for showing the total frequency of two combined categories and illustrating the different components making up this total frequency?

    <p>Vertical Stack Graph</p> Signup and view all the answers

    What is the primary purpose of a Pie-of-Pie Chart?

    <p>To compare the components of the main categories in a larger pie chart.</p> Signup and view all the answers

    What is the main advantage of using a Scatter Plot Graph?

    <p>It helps in identifying patterns in the relationship between variables and determining the strength of the correlation.</p> Signup and view all the answers

    What is the purpose of sorting data according to two criteria, such as sorting height data separately for males and females?

    <p>To make sense of data by organizing it in a manageable and understandable format.</p> Signup and view all the answers

    What is the primary purpose of creating a frequency table?

    <p>To summarize how often different values appear in a data set, allowing for comparisons.</p> Signup and view all the answers

    What is the next step after counting the number of data points that fall into each class interval?

    <p>Calculating percentage values.</p> Signup and view all the answers

    Why is it important to choose a representative sample in data collection?

    <p>To ensure the sample accurately represents the population, making the data more reliable.</p> Signup and view all the answers

    What is the primary purpose of using a questionnaire in data collection?

    <p>To gather specific information from participants or respondents.</p> Signup and view all the answers

    What is the impact of outliers on the range of a data set?

    <p>It increases the range of a data set.</p> Signup and view all the answers

    What is the purpose of comparing the measures of central tendency?

    <p>To determine which measure of central tendency is most suitable for the data.</p> Signup and view all the answers

    What is the primary consideration when selecting a data collection instrument?

    <p>The nature of the target population</p> Signup and view all the answers

    Why is the median a better measure of central tendency than the mean in the presence of outliers?

    <p>Because the median is less affected by outliers</p> Signup and view all the answers

    What is the primary purpose of summarizing data?

    <p>To identify patterns and trends in the data</p> Signup and view all the answers

    What is the effect of outliers on the range of a data set?

    <p>They increase the range of the data</p> Signup and view all the answers

    What is the purpose of calculating the mean, median, and mode of a data set?

    <p>To compare the measures of central tendency</p> Signup and view all the answers

    What is the primary purpose of ensuring a sample is representative of the population?

    <p>To increase the accuracy of the data</p> Signup and view all the answers

    What is the purpose of using a questionnaire in data collection?

    <p>To include a wide range of questions</p> Signup and view all the answers

    What is the effect of a small sample size on the data collection process?

    <p>It reduces the accuracy of the data</p> Signup and view all the answers

    What is the primary purpose of defining the population and sample?

    <p>To select a representative sample</p> Signup and view all the answers

    What is the purpose of comparing the measures of central tendency?

    <p>To decide which measure best represents the data</p> Signup and view all the answers

    What is the primary purpose of posing questions in the statistical process?

    <p>To guide the data collection process and justify the need for data</p> Signup and view all the answers

    What is the main consideration when choosing a data collection instrument?

    <p>The nature of the group or objects from which data will be collected</p> Signup and view all the answers

    What is the consequence of a small sample size?

    <p>Skewed or biased data</p> Signup and view all the answers

    What is the purpose of a recording sheet in data collection?

    <p>To record the frequency of events or specific features of events</p> Signup and view all the answers

    What is the primary purpose of developing a data collection instrument?

    <p>To choose the most effective tool for collecting data</p> Signup and view all the answers

    What is the characteristic of a population?

    <p>The entire group about which data is being collected</p> Signup and view all the answers

    What is the impact of a biased sample on the data collection process?

    <p>It leads to skewed or biased data</p> Signup and view all the answers

    What is the importance of ensuring a sample is representative of the population?

    <p>It ensures the data collected is accurate and reliable</p> Signup and view all the answers

    What is the primary reason for calculating percentage values in a frequency table?

    <p>To standardize comparisons between categories with different total numbers of data points</p> Signup and view all the answers

    What is the consequence of using class intervals that are too wide?

    <p>The data will be over-simplified, losing important details</p> Signup and view all the answers

    What is the purpose of counting the number of data points that fall into each class interval?

    <p>To create a frequency table</p> Signup and view all the answers

    What is the benefit of using a frequency table with separate columns for each category?

    <p>It enables comparison of the frequencies of different categories</p> Signup and view all the answers

    What is the assumption underlying the calculation of percentage values in a frequency table?

    <p>The class intervals are chosen to cover the range of the data</p> Signup and view all the answers

    What is the main advantage of using a bar-of-pie chart over a double bar graph?

    <p>To display the components of the main categories in a larger pie chart</p> Signup and view all the answers

    Why is sorting data according to two criteria important in Grade 11?

    <p>To sort height data separately for males and females</p> Signup and view all the answers

    What is the primary purpose of constructing a scatter plot graph?

    <p>To identify the correlation between two variables</p> Signup and view all the answers

    What is the primary advantage of using two line graphs on the same set of axes?

    <p>To show the changes in different data sets over time and how they change relative to each other</p> Signup and view all the answers

    What is the purpose of sorting data in ascending or descending order?

    <p>To analyze the data by organizing it into a structured format that is easy to interpret</p> Signup and view all the answers

    What is the primary purpose of creating a frequency table?

    <p>To summarize how often different values appear in a data set</p> Signup and view all the answers

    What is the primary purpose of using vertical stack graphs?

    <p>To show the different components making up the total frequency</p> Signup and view all the answers

    What is the primary purpose of creating a pie-of-pie chart?

    <p>To display the components of the main categories in a larger pie chart</p> Signup and view all the answers

    What is the primary purpose of identifying outliers in a scatter plot graph?

    <p>To show the exceptions to the identified trends</p> Signup and view all the answers

    What is the primary purpose of using class intervals in a frequency table?

    <p>To group large sets of data into more manageable categories</p> Signup and view all the answers

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