Consider the following sample data. Sample A: 12. 21, 30 Sample 3: 70. 79. 88 Sample C: 1.045: 1,054: 1.063 (a) Find the mean and standard deviation for each sample. Sample A Sample B Sample C Mean Sample Standard Deviation (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