题目内容

10. Optimally, when choosing a class interval, you should have approximately this many intervals covering the entire range of date:

A. 10 to 20
B. 5 to 10
C. 20 to 30
D. 5 to 20

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9. What is the term associated with the upper or lower boundary of a set of scores used in the creation of a frequency distribution?

A. Class interval
B. Variation
Central tendency
D. Skewness

8. Which of the following is not a measure of central tendency?

A. Standard deviation
B. Mean
C. Median
D. Mode

7. Inferential statistics is most often used for which of the following?

A. Summarizing data
B. Describing data
Collecting data
D. Interpreting data

6. What is the most common measure of variability?

A. Variance
B. Standard deviation
C. Range
D. Mode