Gr 12 Math Lit: Ch 2 Sum Data Handling

What is the main advantage of open-ended questions in research?

They can yield detailed and qualitative insights (correct)

They provide predefined options for respondents

They are quick to answer and analyse

They accommodate all respondents' views

What is the primary influence on the choice of sample and data collection method in research?

Research question

Research aim (correct)

Population size

Sample bias

What is the main disadvantage of closed questions in research?

They provide incomplete answers

They are time-consuming to answer and analyse

They may not accommodate all respondents' views (correct)

They are not useful for collecting quantitative data

What is the term for a subset of the population chosen to represent it in research?

Sample Signup and view all the answers

What is the main advantage of observation as a data collection method in research?

It avoids interaction biases Signup and view all the answers

What is the main disadvantage of observation as a data collection method in research?

It is limited to observable phenomena Signup and view all the answers

What is a questionnaire in research?

A list of questions given to respondents to collect data directly from them Signup and view all the answers

What is sample bias in research?

When the sample does not accurately represent the population Signup and view all the answers

What is the main purpose of using percentiles in data analysis?

To understand the distribution of data and compare individual values to the entire data set Signup and view all the answers

What is the primary advantage of using anonymous surveys?

They encourage honesty Signup and view all the answers

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

Scatter plot Signup and view all the answers

What is the main disadvantage of using interviews in data collection?

They are time-consuming and may introduce interviewer bias Signup and view all the answers

What is the calculation for the Interquartile Range (IQR)?

Q3 - Q1 Signup and view all the answers

What is the purpose of using box and whisker plots?

To summarize data using the five-number summary Signup and view all the answers

What is the purpose of classifying data?

To simplify the data for better understanding and analysis Signup and view all the answers

What is the purpose of using tally marks?

To count how many items fall into each category Signup and view all the answers

What is the definition of the median?

The middle value in an ordered data set Signup and view all the answers

What is the main purpose of using line graphs?

To show the relationship between two quantities over time Signup and view all the answers

What is the definition of a frequency table?

A table that displays the frequency of various outcomes in a sample Signup and view all the answers

What is the formula for calculating the mean?

Add all the values together and divide by the number of values Signup and view all the answers

What is the calculation for the mean?

Sum of all values / Number of values Signup and view all the answers

What is the purpose of using the median?

It is less affected by outliers and skewed data than the mean Signup and view all the answers

What is the definition of the interquartile range?

The range of the middle 50% of the data Signup and view all the answers

What is the purpose of using histograms?

To represent continuous data grouped into ranges Signup and view all the answers

What is the definition of the range?

The difference between the highest and lowest values in the data set Signup and view all the answers

What is the main purpose of using bar graphs?

To represent data sorted into categories Signup and view all the answers

What is the purpose of using quartiles?

To help understand the spread and distribution of the data Signup and view all the answers

What is the calculation for the upper quartile (Q3)?

The median of the upper half of the data set Signup and view all the answers

What is the primary purpose of using histograms?

To represent continuous data grouped into ranges Signup and view all the answers

What is the advantage of using the median over the mean?

It is less affected by outliers Signup and view all the answers

What is the main purpose of using scatter plots?

To study the relationship between two variables Signup and view all the answers

What is the calculation for the Interquartile Range (IQR)?

Q3 - Q1 Signup and view all the answers

What is the purpose of using percentiles?

To understand the distribution of data Signup and view all the answers

What is the main purpose of using box and whisker plots?

To display the five-number summary Signup and view all the answers

What is the primary purpose of using line graphs?

To show the relationship between one variable over time Signup and view all the answers

What is the advantage of using graphs in data analysis?

They provide a clear and concise way to present data findings Signup and view all the answers

What is the main purpose of using bar graphs?

To display the distribution of categorical data Signup and view all the answers

What is the definition of quartiles?

Values that divide the data set into four equal parts Signup and view all the answers

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

They provide insightful and qualitative data. Signup and view all the answers

What is the main purpose of selecting a sample instead of the population in research?

To reduce the cost and time of data collection. Signup and view all the answers

What is the main limitation of using questionnaires in research?

They may not capture respondents' attitudes or opinions. Signup and view all the answers

What is the main advantage of using anonymous surveys in research?

Encouragement of honest responses Signup and view all the answers

What is the purpose of classifying data?

To group data based on shared characteristics Signup and view all the answers

What is the primary reason for using random sampling in research?

To minimize sample bias and ensure accurate results. Signup and view all the answers

What is the definition of a frequency table?

A table that displays the frequency of various outcomes in a sample Signup and view all the answers

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

It avoids interaction biases and captures behavioural data. Signup and view all the answers

What is the purpose of using quartiles in data analysis?

To divide the data set into four equal parts Signup and view all the answers

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

They may not accommodate all respondents' views. Signup and view all the answers

What is the purpose of defining the population in research?

To select a representative sample. Signup and view all the answers

What is the main disadvantage of using interviews in research?

They are time-consuming and may introduce interviewer bias Signup and view all the answers

What is the purpose of using tally marks in data analysis?

To count discrete data quickly and efficiently Signup and view all the answers

What is the primary reason for using a questionnaire in research?

To collect data directly from respondents. Signup and view all the answers

What is the main advantage of using the median in data analysis?

It is less affected by outliers and skewed data Signup and view all the answers

What is the definition of the range in data analysis?

The difference between the highest and lowest values in the data set Signup and view all the answers

What is the purpose of using grouped frequency tables?

To organize continuous data into specified intervals Signup and view all the answers

What is the purpose of organising data?

To simplify the data for better understanding and analysis Signup and view all the answers

Which of the following research questions is most likely to yield detailed and qualitative insights?

A question allowing respondents to answer in their own words Signup and view all the answers

What is the primary reason for using random sampling in research?

To minimize sample bias and control for demographic factors Signup and view all the answers

What is the main limitation of using questionnaires in research?

They may not accommodate all respondents' views Signup and view all the answers

Which of the following is a characteristic of observation as a data collection method?

It avoids interaction biases and is useful for collecting behavioral data Signup and view all the answers

Why is it important to define the population in research?

To select a representative sample Signup and view all the answers

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

They are easier to analyze and compare Signup and view all the answers

What is the primary influence on the choice of data collection method in research?

The research question Signup and view all the answers

What is the main disadvantage of sample bias in research?

It fails to represent the population accurately Signup and view all the answers

What is a key benefit of using anonymity in data collection?

Greater honesty in participant responses Signup and view all the answers

What is the primary purpose of organising data?

To simplify and facilitate analysis Signup and view all the answers

What is a limitation of using interviewers in data collection?

Increased risk of interviewer bias Signup and view all the answers

What is the primary advantage of using frequency tables?

To show the distribution of data Signup and view all the answers

What is the purpose of using quartiles in data analysis?

To understand the spread and distribution of data Signup and view all the answers

What is a benefit of using tally marks?

To count discrete data quickly and efficiently Signup and view all the answers

What is the primary purpose of classifying data?

To simplify and facilitate analysis Signup and view all the answers

What is a limitation of using the mean as a measure of central tendency?

It is sensitive to outliers Signup and view all the answers

What is the purpose of summarising data?

To simplify and facilitate analysis Signup and view all the answers

What is a benefit of using measures of spread in data analysis?

To understand the distribution and variability of the data Signup and view all the answers

What is the primary purpose of using percentile in data analysis?

To understand the distribution of data Signup and view all the answers

What is the main advantage of using box and whisker plots?

To summarize data using the five-number summary Signup and view all the answers

What type of graph is used to show the distribution of continuous data?

Histogram Signup and view all the answers

What is the primary purpose of using quartiles in data analysis?

To summarize data into four equal parts Signup and view all the answers

What is the main difference between line graphs and scatter plots?

Line graphs show the relationship between two variables, while scatter plots show the distribution of data Signup and view all the answers

What is the primary purpose of using the median in data analysis?

To provide the central point of the data set, less affected by outliers Signup and view all the answers

What is the primary advantage of using box and whisker plots over histograms?

Box and whisker plots provide a more detailed summary of the data Signup and view all the answers

What is the main purpose of using bar graphs?

To represent data sorted into categories Signup and view all the answers

What is the primary difference between the interquartile range (IQR) and the range?

The IQR is less sensitive to outliers, while the range is more robust Signup and view all the answers

What is the primary purpose of using scatter plots?

To study the relationship between two variables Signup and view all the answers

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

They may be time-consuming to answer and analyze Signup and view all the answers

What is the primary advantage of using a sample instead of the population in research?

It is more cost-effective Signup and view all the answers

What is the primary reason for using random sampling in research?

To minimize sample bias Signup and view all the answers

What is the primary disadvantage of using questionnaires in research?

They may not capture respondents' attitudes or opinions Signup and view all the answers

What is the primary purpose of defining the population in research?

To ensure that the sample is representative Signup and view all the answers

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

It avoids interaction biases Signup and view all the answers

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

They may not accommodate all respondents' views Signup and view all the answers

What is the primary purpose of using a sample bias solution in research?

To minimize sample bias Signup and view all the answers

What is the primary advantage of using interviews in research?

To clarify ambiguous answers and probe for more detailed information Signup and view all the answers

What is the main purpose of using tally marks in data analysis?

To count discrete data quickly and efficiently Signup and view all the answers

What is the primary purpose of using scatter plots in data analysis?

To study the relationship between two variables Signup and view all the answers

What is the primary advantage of using frequency tables in data analysis?

To identify patterns and trends in the data Signup and view all the answers

What is the primary purpose of classifying data?

To simplify the data for better understanding and analysis Signup and view all the answers

Which of the following is a limitation of using the mean as a measure of central tendency?

It is sensitive to outliers Signup and view all the answers

What is the main purpose of using measures of central tendency in data analysis?

To provide a single value that represents the central point of the dataset Signup and view all the answers

What is the primary purpose of using percentiles in data analysis?

To understand the distribution of data and compare individual values Signup and view all the answers

What is the primary advantage of using the median over the mean in data analysis?

The median is less affected by outliers and skewed data Signup and view all the answers

Which of the following graphs is used to show the relationship between two variables over time?

Line graph Signup and view all the answers

What is the primary purpose of using measures of spread in data analysis?

To understand the spread and distribution of the data Signup and view all the answers

What is the primary purpose of using box and whisker plots in data analysis?

To summarize data using the five-number summary Signup and view all the answers

Which of the following is a characteristic of a histogram?

Bars touch each other Signup and view all the answers

What is the primary purpose of using quartiles in data analysis?

To divide the data into four equal parts Signup and view all the answers

What is the primary advantage of using grouped frequency tables in data analysis?

To organize continuous data into specified ranges Signup and view all the answers

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

To represent the central point of the data set less affected by outliers Signup and view all the answers

What is the primary purpose of using summarising data in data analysis?

To simplify the data for better understanding and analysis Signup and view all the answers

Which of the following is a characteristic of a bar graph?

Bars are separated by spaces Signup and view all the answers

What is the primary purpose of using the interquartile range (IQR) in data analysis?

To measure the spread of the central portion of the data Signup and view all the answers

Which of the following is a type of bar graph?

Compound bar graph Signup and view all the answers

Gr 12 Math Lit: Ch 2 Sum Data Handling

Questions and Answers

What is the main advantage of open-ended questions in research?

What is the primary influence on the choice of sample and data collection method in research?

What is the main disadvantage of closed questions in research?

What is the term for a subset of the population chosen to represent it in research?

What is the main advantage of observation as a data collection method in research?

What is the main disadvantage of observation as a data collection method in research?

What is a questionnaire in research?

What is sample bias in research?

What is the main purpose of using percentiles in data analysis?

What is the primary advantage of using anonymous surveys?

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

What is the main disadvantage of using interviews in data collection?

What is the calculation for the Interquartile Range (IQR)?

What is the purpose of using box and whisker plots?

What is the purpose of classifying data?

What is the purpose of using tally marks?

What is the definition of the median?

What is the main purpose of using line graphs?

What is the definition of a frequency table?

What is the formula for calculating the mean?

What is the calculation for the mean?

What is the purpose of using the median?

What is the definition of the interquartile range?

What is the purpose of using histograms?

What is the definition of the range?

What is the main purpose of using bar graphs?

What is the purpose of using quartiles?

What is the calculation for the upper quartile (Q3)?

What is the primary purpose of using histograms?

What is the advantage of using the median over the mean?

What is the main purpose of using scatter plots?

What is the calculation for the Interquartile Range (IQR)?

What is the purpose of using percentiles?

What is the main purpose of using box and whisker plots?

What is the primary purpose of using line graphs?

What is the advantage of using graphs in data analysis?

What is the main purpose of using bar graphs?

What is the definition of quartiles?

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

What is the main purpose of selecting a sample instead of the population in research?

What is the main limitation of using questionnaires in research?

What is the main advantage of using anonymous surveys in research?

What is the purpose of classifying data?

What is the primary reason for using random sampling in research?

What is the definition of a frequency table?

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

What is the purpose of using quartiles in data analysis?

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

What is the purpose of defining the population in research?

What is the main disadvantage of using interviews in research?

What is the purpose of using tally marks in data analysis?

What is the primary reason for using a questionnaire in research?

What is the main advantage of using the median in data analysis?

What is the definition of the range in data analysis?

What is the purpose of using grouped frequency tables?

What is the purpose of organising data?

Which of the following research questions is most likely to yield detailed and qualitative insights?

What is the primary reason for using random sampling in research?

What is the main limitation of using questionnaires in research?

Which of the following is a characteristic of observation as a data collection method?

Why is it important to define the population in research?

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

What is the primary influence on the choice of data collection method in research?

What is the main disadvantage of sample bias in research?

What is a key benefit of using anonymity in data collection?

What is the primary purpose of organising data?

What is a limitation of using interviewers in data collection?

What is the primary advantage of using frequency tables?

What is the purpose of using quartiles in data analysis?

What is a benefit of using tally marks?

What is the primary purpose of classifying data?

What is a limitation of using the mean as a measure of central tendency?

What is the purpose of summarising data?

What is a benefit of using measures of spread in data analysis?

What is the primary purpose of using percentile in data analysis?

What is the main advantage of using box and whisker plots?

What type of graph is used to show the distribution of continuous data?

What is the primary purpose of using quartiles in data analysis?