The ages of a random sample of people who attended a recentsoccer match are as follows:
23 35 14 37 38 15 45
12 40 27 13 18 19 23
37 20 29 49 40 65 53
18 17 23 27 29 31 42
35 38 22 20 15 17 21
a. Find the mean age.
b. Find the standard deviation.
c. Find the coefficient of variation.