Question: More on men's heights. The distribution of heights of young men is approximately Normal with mean 70 inches and standard deviation 2.5 inches. Use the 68-95-99.7 rule to answer the following questions.
(a) What percentage of men are taller than 77.5 inches?
(b) Between what heights do the middle 68% of men fall?
(c) What percentage of men are shorter than 65 inches?