Gr 10 Math lit: Ch 3 Sum Data Handling
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Questions and Answers

What is the main purpose of stating the aim of the research?

  • To ensure the research is specific and measurable (correct)
  • To identify the research methodology
  • To clearly define the research scope
  • To determine the research budget

    • What type of question is best suited for obtaining quantitative data?

  • Combination questions
  • Open-ended questions
  • Leading questions
  • Closed questions (correct)

    • What is the primary benefit of using open-ended questions in research?

  • They are more concise than closed questions
  • They provide quantitative data
  • They provide deeper insights into respondents' opinions (correct)
  • They allow for ease of analysis

    • What is an example of a leading question?

    <p>Don't you think the new policy is a great idea?</p> Signup and view all the answers

    What is the primary advantage of using a combination of closed and open-ended questions in research?

    <p>It provides a more comprehensive understanding of the research topic</p> Signup and view all the answers

    Why is it important to avoid ambiguity in research questions?

    <p>To reduce the risk of misinterpretation</p> Signup and view all the answers

    What is the formula for stating the aim of the research?

    <p>Aim = 'To find out [specific aspect] about [subject]'</p> Signup and view all the answers

    What is the primary characteristic of a well-constructed research question?

    <p>It is concise and easy to understand</p> Signup and view all the answers

    What is the primary aim of the research that influences the way data will be collected?

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

    What type of question is 'What do you like most about [topic]?'

    <p>Open-ended question</p> Signup and view all the answers

    What is the formula for calculating the probability of selection in a random sample?

    <p>Probability of selection = 1 / N</p> Signup and view all the answers

    What is the main advantage of using questionnaires in data collection?

    <p>It is suitable for collecting data from a wide geographic area</p> Signup and view all the answers

    What is the purpose of a relevance check in developing a questionnaire?

    <p>To analyze each question for necessity, feasibility, and likelihood of getting an honest answer</p> Signup and view all the answers

    What is categorical data?

    <p>Data that cannot be measured numerically but can be described</p> Signup and view all the answers

    What is the term for the organized list of data?

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

    What is the purpose of classification in data handling?

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

    What is the formula for calculating the sample size?

    <p>n = N / (1 + N(e^2))</p> Signup and view all the answers

    What is the purpose of using a Likert scale in designing closed-ended questions?

    <p>To calculate the response score</p> Signup and view all the answers

    What is the primary purpose of a line graph?

    <p>To show the relationship between two quantities over time</p> Signup and view all the answers

    What is the measure of central tendency that is calculated by adding all values together and dividing by the number of values?

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

    What type of graph is used to display continuous data that is grouped into intervals?

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

    What is the analysis of data?

    <p>A continuous process that begins with the gathering of information</p> Signup and view all the answers

    What is the range of a data set?

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

    What is the primary purpose of calculating measures of central tendency and spread?

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

    What type of graph is used to compare parts of a whole?

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

    Why are line graphs useful for showing changes over time?

    <p>Because they can show the relationship between two quantities over time</p> Signup and view all the answers

    What is the purpose of summarising data?

    <p>To simplify the analysis process</p> Signup and view all the answers

    What is the formula for finding the mean?

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

    What is the measure of spread that shows how spread out the data values are?

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

    What is the purpose of a frequency table?

    <p>To list the categories or groups of items, along with the number of times each item occurs</p> Signup and view all the answers

    What is the type of graph used to display data that can be compared across different categories?

    <p>Bar graph</p> Signup and view all the answers

    What is the formula for finding the total number of items in a dataset?

    <p>Total number of items = ∑Frequencies</p> Signup and view all the answers

    What is the type of graph used to compare parts of a whole?

    <p>Pie chart</p> Signup and view all the answers

    What is the median of a dataset when the number of values is even?

    <p>The average of the two middle values</p> Signup and view all the answers

    What is the purpose of a tally?

    <p>To count how many of each group there are</p> Signup and view all the answers

    What is the measure of central tendency that shows the value that appears most frequently in a dataset?

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

    What is the primary purpose of stating the aim of research?

    <p>To provide a clear direction for the research</p> Signup and view all the answers

    Which type of question is most useful for gaining deeper insights into respondents' opinions or behaviors?

    <p>Open question</p> Signup and view all the answers

    What is the benefit of using a combination of closed and open questions in research?

    <p>It provides a comprehensive understanding of the research topic</p> Signup and view all the answers

    What is the characteristic of a well-constructed research question?

    <p>It is specific and measurable</p> Signup and view all the answers

    What is the primary aim of the research that influences the way data will be collected?

    <p>To provide a clear direction for the research</p> Signup and view all the answers

    What is the formula for constructing an open question?

    <p>What do you think about [topic]?</p> Signup and view all the answers

    Why is it important to avoid ambiguity in research questions?

    <p>To ensure the question is easily understood</p> Signup and view all the answers

    What is the benefit of being clear and concise in research questions?

    <p>It ensures the question is easily understood</p> Signup and view all the answers

    What is the primary purpose of line graphs?

    <p>To show trends and changes over time</p> Signup and view all the answers

    What is the purpose of calculating measures of central tendency and spread?

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

    What type of graph is used to display continuous data that is grouped into intervals?

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

    What is the formula for calculating the range of a data set?

    <p>Highest Value - Lowest Value</p> Signup and view all the answers

    What is the measure of central tendency that is calculated by adding all values together and dividing by the number of values?

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

    What is the purpose of analysis in data handling?

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

    What type of graph is used to compare parts of a whole?

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

    What is the median of a dataset when the number of values is even?

    <p>The average of the two middle values</p> Signup and view all the answers

    What is the main advantage of using observation as a method of collecting data?

    <p>It is a convenient way to collect data without disturbing the environment</p> Signup and view all the answers

    What is the purpose of a sample size calculation?

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

    What is the benefit of using a questionnaire as a method of data collection?

    <p>It is suitable for collecting data from a wide geographical area</p> Signup and view all the answers

    What is the primary characteristic of categorical data?

    <p>It can be described but not measured</p> Signup and view all the answers

    What is the purpose of classifying data?

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

    What is the formula for calculating the probability of selection in a random sample?

    <p>Probability of selection = 1 / N</p> Signup and view all the answers

    What is the purpose of a relevance check in developing a questionnaire?

    <p>To analyze each question for necessity, feasibility, and likelihood of getting an honest answer</p> Signup and view all the answers

    What is the term for the organized list of data?

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

    What is the primary purpose of using a Likert scale in designing closed-ended questions?

    <p>To measure the level of agreement or disagreement</p> Signup and view all the answers

    What is the formula for calculating the sample size in a population?

    <p>n = N / (1 + N(e^2))</p> Signup and view all the answers

    What is the primary purpose of organizing data?

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

    What is the term for the way of counting how many of each group there are?

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

    What is the formula for finding the total number of items in a dataset when grouped into class intervals?

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

    What is the measure of central tendency that is calculated by adding all values together and dividing by the number of values?

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

    What is the purpose of a frequency table?

    <p>To show the list of categories or groups of items, along with the number of times each item occurs</p> Signup and view all the answers

    What is the type of graph used to display data that can be compared across different categories?

    <p>Bar Graph</p> Signup and view all the answers

    What is the measure of spread that shows how spread out the data values are?

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

    What is the purpose of summarising data?

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

    What is the type of graph used to display continuous data that is grouped into intervals?

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

    What is the primary purpose of calculating measures of central tendency and spread?

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

    What is the primary purpose of specifying the aim of the research?

    <p>To clarify the scope of the investigation</p> Signup and view all the answers

    Which of the following is NOT a characteristic of a well-constructed closed question?

    <p>It allows respondents to elaborate on their answers</p> Signup and view all the answers

    What is the primary benefit of using open questions in research?

    <p>They allow respondents to elaborate on their opinions or behaviors</p> Signup and view all the answers

    Why is it essential to avoid leading questions in research?

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

    What is the primary purpose of combining closed and open questions in research?

    <p>To provide both quantitative and qualitative data</p> Signup and view all the answers

    What is the characteristic of a well-constructed research question?

    <p>It is clear, concise, and specific</p> Signup and view all the answers

    What is the main characteristic of discrete data?

    <p>Each value is specific and can be counted</p> Signup and view all the answers

    What is the primary purpose of stating the research question?

    <p>To clarify the scope of the investigation</p> Signup and view all the answers

    What is the purpose of a sample in research?

    <p>To select a representative group from the population</p> Signup and view all the answers

    What is the benefit of using closed questions in research?

    <p>They provide quantitative data that can be easily analyzed</p> Signup and view all the answers

    What is the formula for calculating the probability of selection in a random sample?

    <p>Probability of selection = 1 / N</p> Signup and view all the answers

    What is the primary purpose of classifying data?

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

    What is the term for the process of selecting a sample from the population?

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

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

    <p>It is a cost-effective way to collect data from a large number of people</p> Signup and view all the answers

    What is the purpose of a relevance check in developing a questionnaire?

    <p>To analyze each question for necessity, feasibility, and likelihood of getting an honest answer</p> Signup and view all the answers

    What is the primary purpose of using a Likert scale in designing closed-ended questions?

    <p>To provide a range of response options</p> Signup and view all the answers

    What is the formula for calculating the sample size?

    <p>n = N / (1 + N(e^2))</p> Signup and view all the answers

    What is the primary purpose of developing a good questionnaire?

    <p>To ensure the information collected is valid and accurate</p> Signup and view all the answers

    What is the primary function of a line graph?

    <p>To show the relationship between two quantities over time</p> Signup and view all the answers

    What measure of central tendency is calculated by adding all values together and dividing by the number of values?

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

    What type of graph is used to display data that can be compared across different categories?

    <p>Bar Graph</p> Signup and view all the answers

    What is the primary purpose of analysing data?

    <p>To identify trends and patterns</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

    What type of graph is used to show the relationship between two quantities?

    <p>Line Graph</p> Signup and view all the answers

    What is the median of a dataset when the number of values is even?

    <p>The average of the two middle values</p> Signup and view all the answers

    What is the primary purpose of calculating measures of central tendency and spread?

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

    What is the main advantage of using class intervals when organizing data?

    <p>It simplifies the data and makes it easier to manage</p> Signup and view all the answers

    Which type of graph is used to show how data is dispersed?

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

    What is the purpose of calculating measures of central tendency and spread?

    <p>To summarize the data efficiently for better analysis and interpretation</p> Signup and view all the answers

    What is the formula for finding the total number of items in a dataset when the data is grouped into class intervals?

    <p>Sum the frequencies of all class intervals</p> Signup and view all the answers

    What is the purpose of using a frequency table?

    <p>To show the list of categories or groups of items, along with the number of times each item occurs</p> Signup and view all the answers

    What is the median of a dataset when the number of values is odd?

    <p>The middle value</p> Signup and view all the answers

    What is the purpose of summarising data?

    <p>To simplify the analysis process</p> Signup and view all the answers

    What is the measure of central tendency that shows the value that appears most frequently in a dataset?

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

    What is the purpose of using tallies when organizing data?

    <p>To count how many of each group there are</p> Signup and view all the answers

    What is the range of a dataset?

    <p>The highest value minus the lowest value</p> Signup and view all the answers

    What is the primary advantage of using closed questions in research?

    <p>They are useful for obtaining straightforward, quantitative data.</p> Signup and view all the answers

    What is the purpose of stating the aim of the research?

    <p>To clearly define the research objectives.</p> Signup and view all the answers

    What is the primary characteristic of open questions?

    <p>They allow respondents to answer in their own words.</p> Signup and view all the answers

    What is the benefit of using a combination of closed and open questions in research?

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

    Why is it important to avoid leading questions in research?

    <p>Because they suggest a particular answer.</p> Signup and view all the answers

    What is the primary advantage of being clear and concise in research questions?

    <p>It ensures that the question is easily understood.</p> Signup and view all the answers

    What is the purpose of constructing effective research questions?

    <p>To collect relevant and accurate data.</p> Signup and view all the answers

    What is the benefit of using specific research questions?

    <p>It helps to focus on one aspect per question.</p> Signup and view all the answers

    What is the primary purpose of line graphs in data analysis?

    <p>To show trends and changes over time</p> Signup and view all the answers

    What does the range of a data set represent?

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

    What type of graph is used to display data that can be compared across different categories?

    <p>Bar graph</p> Signup and view all the answers

    What is the purpose of calculating measures of central tendency and spread?

    <p>To summarise the main features of the data</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 type of graph is used to represent continuous data that is grouped into intervals?

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

    What is the median of a dataset when the number of values is even?

    <p>The average of the two middle values</p> Signup and view all the answers

    What is the purpose of analysis in data handling?

    <p>To make decisions based on the data</p> Signup and view all the answers

    What is the primary purpose of using class intervals in data organisation?

    <p>To group continuous data into specific ranges or intervals</p> Signup and view all the answers

    What is the formula for finding the number of items less than a certain value in a dataset?

    <p>Sum the frequencies of all relevant class intervals</p> Signup and view all the answers

    What is the median of a dataset when the number of values is odd?

    <p>The middle value</p> Signup and view all the answers

    What type of graph is used to display data that can be compared across different categories?

    <p>Bar graph</p> Signup and view all the answers

    What is the primary purpose of summarising data?

    <p>To simplify the analysis process</p> Signup and view all the answers

    What is the measure of central tendency that is calculated by adding all values together and dividing by the number of values?

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

    What is the primary purpose of using tallies in data organisation?

    <p>To count how many of each group there are</p> Signup and view all the answers

    What is the formula for finding the total number of items in a dataset?

    <p>Sum the frequencies of all class intervals</p> Signup and view all the answers

    What is the primary purpose of using measures of central tendency and spread?

    <p>To summarise the data efficiently for better analysis and interpretation</p> Signup and view all the answers

    What type of graph is used to display continuous data that is grouped into intervals?

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

    What is the primary advantage of using observation as a method of data collection?

    <p>It does not entail personal contact and can be used to count frequencies.</p> Signup and view all the answers

    Which of the following is an example of categorical data?

    <p>Colour of sweets in a jar</p> Signup and view all the answers

    What is the formula for calculating the sample size?

    <p>n = N / (1 + N(e^2))</p> Signup and view all the answers

    What is the primary purpose of classifying data?

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

    Which type of question is most useful for gaining quantitative data?

    <p>Closed-ended questions</p> Signup and view all the answers

    What is the primary advantage of using a Likert scale in designing closed-ended questions?

    <p>It provides a quantifiable measure of respondents' attitudes or opinions</p> Signup and view all the answers

    What is the formula for calculating the probability of selection in a random sample?

    <p>Probability of selection = 1 / N</p> Signup and view all the answers

    What is the primary purpose of developing a good questionnaire?

    <p>To ensure the information collected is valid and accurate</p> Signup and view all the answers

    Which of the following is an example of numerical data?

    <p>Height of a person</p> Signup and view all the answers

    What is the primary purpose of using databases in research?

    <p>To use information that is already stored</p> Signup and view all the answers

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