The heights of Canadian men are normally distributed with a mean of 69 inches and a standard deviation of 2.7 inches. According to the empirical rule, what percentage of Canadian men are:

(a) Under 63.6 inches tall?
Answer: %

(b) Over 71.7 inches tall?
Answer: %

(c) Between 60.9 and 77.1 inches tall?
Answer: %