Assume that the height of people, measured in inches, has a normal distribution with a mean of 65 inches and a standard deviation of 4 inches A) Find the probability that a randomly selected person...

Assume that the height of people, measured in inches, has a normal distribution

with a mean of 65 inches and a standard deviation of 4 inches

A) Find the probability that a randomly selected person has a height
greater than 68 inches.

B) Find the probability that a sample of 9 randomly selected people has a
mean height greater than 68 inches?