# Suppose that for a given animal, the length of pregnancy from conception to birth varies according to a distribution that is approximately normal with mean 317 days and standard deviation 8 days. We can expect that about __ percent of all completed pregnancies for this animal are between301and333days.

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Suppose that for a given animal, the length of pregnancy from conception to birth varies according to a distribution that is approximately normal with mean 317 days and standard deviation 8 days. We can expect that about __ percent of all completed pregnancies for this animal are between301and333days.

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Step 1

Introduction:

Let X denote the length of pregnancy from conception of a randomly chosen animal of the give...

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