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The lengths of pregnancies are normally distributed with a mean of 263 days and a standard deviation of 30 days. If 49 women are randomly

The lengths of pregnancies are normally distributed with a mean of 263 days and a standard deviation of 30 days. If 49 women are randomly selected, find the probability that they have a mean pregnancy between 265 days and 269 days.

A-0.2396

B-0.7881

C-0.5517

D-0.2119

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