Pearson and Lee obtained the following results for about 1,000 families:
average height of husband ≈68 inches, SD≈2.7 inches
average height of wife ≈63 inches, SD≈2.5 inches, r≈0.25
a) What percentage of the women were over 5 feet 8 inches?
b) Of the women who were married to men of height 6 feet, what percentage were over 5 feet 8 inches?