Asume the lengths of pregnancies of certain animal are

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Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with a mean of 207 and a standard deviation of 17 days.

A. What is the probability that a randomly selected pregnancy lasts less than 201 days?

B. What is the probability that a random sample of 16 pregnancies has a mean gestation period of 201 days or less?

C. What is the probability that a random sample of 37 pregnancies has a mean gestation period of 201 days or less?

Reference no: EM13471004

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