4 Homework Part 1 of 3 points O Points: 0 of 1 Save Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per minute and a standard deviation of o = 12.5 beats per minute. Complete parts (a) through (c) below. . . . a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 78 beats per minute. The probability is (Round to four decimal places as needed.)