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3.1.19-T Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean ju = 153 days and standard deviation o

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3.1.19-T Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean ju = 153 days and standard deviation o = 15 days. Complete parts (a) through (f) below. (a) What is the probability that a randomly selected pregnancy lasts less than 147 days? The probability that a randomly selected pregnancy lasts less than 147 days is approximately . (Round to four decimal places as needed.)

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