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The length of pregnancies are normally distributed with a mean of 268 days 268 and...

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Algebra

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The length of pregnancies are normally distributed with a mean of 268 days 268 and a standard deviation of 15 days 15 A group of 36 pregnant women n 36 were in a parenting class together What is the probability that the average pregnancy for the women lasted longer than 270 days 21 2 28 8 55 2 78 8

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