Based on the measurements in Data Set 1 of Appendix B, assume that heights of women are normally distributed with a mean of 162.0 cm and a standard deviation of 6.6 cm.
a. If a woman is randomly selected, find the probability that she is taller than 152.1 cm.
b. If four women are randomly selected, find the probability that their mean height is greater than 152.1 cm.
c. Find P80.