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Questions and Answers
What is the primary purpose of summarising data?
What is the primary purpose of summarising data?
- To only use measures of central tendency
- To only use measures of spread
- To simplify the analysis process (correct)
- To mention every piece of data in a report
What type of measure describes how data is dispersed?
What type of measure describes how data is dispersed?
- Measure of spread (correct)
- Mode
- Median
- Measure of central tendency
How is the mean calculated?
How is the mean calculated?
- By finding the middle value when the data is arranged in ascending order
- By adding all values together and multiplying by the number of values
- By adding all values together and dividing by the number of values (correct)
- By finding the value that appears most frequently in a dataset
What is the median of a dataset with an even number of values?
What is the median of a dataset with an even number of values?
What is the mode of a dataset?
What is the mode of a dataset?
What is the formula for calculating the range?
What is the formula for calculating the range?
What is the purpose of using measures of central tendency?
What is the purpose of using measures of central tendency?
What is the modal class in a grouped dataset?
What is the modal class in a grouped dataset?
Which measure of central tendency is most affected by extreme values in a dataset?
Which measure of central tendency is most affected by extreme values in a dataset?
What is the main advantage of using the median as a measure of central tendency?
What is the main advantage of using the median as a measure of central tendency?
Which of the following is NOT a measure of central tendency?
Which of the following is NOT a measure of central tendency?
When would the mode be the most appropriate measure of central tendency to use?
When would the mode be the most appropriate measure of central tendency to use?
What is the main limitation of using the range as a measure of spread?
What is the main limitation of using the range as a measure of spread?
Which measure of central tendency would be the most affected by adding a large outlier to a dataset?
Which measure of central tendency would be the most affected by adding a large outlier to a dataset?
What is the main advantage of using measures of central tendency and spread together?
What is the main advantage of using measures of central tendency and spread together?
Which of the following is a characteristic of a measure of central tendency?
Which of the following is a characteristic of a measure of central tendency?
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