Age at first child for a sample of women without high school degrees:
25, 17, 19, 21, 23, 16, 18, 22, 16, 20
Age at first child for a sample of women with college degrees:
23, 19, 30, 31, 28, 27, 22, 26, 25, 24
Calculate the mean, median, range, variance and standard deviation for both samples. For which sample is there a later age at first birth? Which has a larger range? For which sample is there more variability?