Suppose that a population of men's heights is normally distributed with
a. mean of 68 inches, and standard deviation of 3 inches. Find the proportion of the men who
(a) Are over 6 feet
(b) Are under 5 feet 6 inches
(c) Are between 5 feet 6 inches and 6 feet. To check your 3 answers, see whether they sum to 1.