The median is the value below which and

11. The median is the value below which and above which approximately 50 percent of the measurements


True False

12. An independent variable is a predictor variable that can be used to describe, predict, or control a

dependent variable.

True False

13. The relative frequency is the frequency of a class divided by the total number of measurements.

True False

14. The box-and-whiskers display is a graphical portrayal of data sets that depict both the central tendency

and variability of the data.

True False

15. When establishing the classes for a frequency table it is generally agreed that the more classes you use the

better your frequency table will be.

True False

16. If there are 7 classes in a frequency distribution, then the fourth class will always contain the median.

True False

17. The sample cumulative distribution function is non-decreasing.

True False

18. Range is a better measure of variation than standard deviation.

True False

19. A normal population has 99.73 percent of the population measurements within _____ standard deviations

of the mean.

A. One

B. Two

C. Three

D. Four

E. Five

20. A numeric characteristic of a sample is a(n) ____________.

A. Mean

B. Variance

C. Statistic

D. Parameter

E. Scale

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27 Feb 2018
Due Date: 27 Feb 2018

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