Consider the following sample data.

Sample A: 5, 11, 17 Sample B: 76, 82, 88 Sample C: 1,075; 1,081; 1,087

(a) Find the mean and standard deviation for each sample.

Mean Sample Standard Deviation

Sample A:

Sample B:

Sample C:

(b) What does this exercise show about the standard deviation?

• The idea is to illustrate that the standard deviation is not a function of the value of the mean.
• The idea is to illustrate that the standard deviation is a function of the value of the mean.