Consider the following sample data. SampLe A: 12, 21, 30 SampLe B: 76, 79, 88 SampLe C: 1,645; 1,054; 1,063 (a) Find the mean and standard deviation for each sample. Mean _l_l_l (b) What does this exercise show about the standard deviation? 0 The idea is to illustrate that the standard deviation is not a function of the value of the mean. 0 The idea is to illustrate that the standard deviation is a function of the value of the mean