? Learn By Doing Adult male height (X) follows (approximately) a normal distribution with a mean of 69 inches and a standard deviation of 2.8 inches. a. What proportion of males are less than 65 inches tall? In other words, what is P(X < 65)? Ans = (Round to four decimal places. Write your answer as a decimal, not a percentage. Example 0.5555 instead of 55.55%) b. What proportion of males are more than 75 inches tall? In other words, what is P(X > 75)? Ans = (Round to four decimal places. Write your answer as a decimal, not a percentage. Example 0.5555 instead of 55.55%) c. What proportion of males are between 66 and 72 inches tall? In other words, what is P(66 < x < 72)? Ans = (Round to four decimal places. Write your answer as a decimal, not a percentage. Example 0.5555 instead of 55.55%) Question Help: Post to forum