Homework Section 5.4 1) The lengths of pregnancies are normally distributed with a mean of 264 days and a standard deviation of 15 days. If 36 women are randomly selected, find the probability that they have a mean pregnancy between 264 days and 266 days. 2) Assume that the heights of women are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. a) Find the probability that they have a height greater than 63 inches. 6) If 100 women are randomly selected, find the probability that they have a mean height greater than 63 inches