The 2000 U.S. Census also asked for each persons age. Suppose that a sample of 40 households taken from the census data showed the age of the first person recorded on the census form to be as follows.

42 29 31 38 55 27 28 33 49 70 25 21 38 47

63 22 38 52 50 41 19 22 29 81 52 26 35 38

29 31 48 26 33 42 58 40 32 24 34 25

a. Compute the mean and the median

b. Compute the variance, range, and standard deviation and interpret the coefficient of variation.

c. Are there any outliers? Explain.

d. Compute 10.80.1 .3 .