SAT, 07.04.2021 17:50 phavion

Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean u = 252 days and standard deviation o = 13 days. rse Hol Complete parts (a) through (1) below.
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(a) What is the probability that a randomly selected pregnancy lasts less than 247 days?
The probability that a randomly selected pregnancy lasts less than 247 days is approximately (Round to four decimal places as needed.)
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Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed wi...