assume that womens heights are normally distributed with a m

assume that women\'s heights are normally distributed with a mean of 63.5 inches and a standard deviation of 2.3 inches.

A) if 1 woman is randomly selected, find the probability that her height is less than 64 inches. - round 4 decimal places.

B) if 36 women are randomly selected, find the probability that they have a mean height less than 64 inches. - round 4 decimal places.