Part 1 of 9 Points: 0 of 1 Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean u= 170 days and standard deviation o = 15 days. Complete parts (a) through (f) below Click here to view the standard normal distribution table (page 1) Click here to view the standard normal distribution table (page 2)_ (a) What is the probability that a randomly selected pregnancy lasts less than 165 days? The probability that a randomly selected pregnancy lasts less than 165 days is approximately (Round to four decimal places as needed )