Assume the duration of human pregnancies can be described by a Normal model with mean 266 days

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Assume the duration of human pregnancies can be described by a Normal model with mean 266 days and standard deviation 16 days.

(A) What percentage of pregnancies should last between 260 days and 270 days?

(B) What's the probability that the mean duration of nine random pregnancies is between 260 days and 270 days?

Please be very detailed in showing work

Posted Date: May 19, 2024 03:03 PM

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Assume the duration of human pregnancies can be described by a Normal model with mean 266 days

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