Mathematics, 17.12.2020 23:40 lexiecooley
17. The length of pregnancies are normally distributed with a mean of 264 days and a standard deviation of 12 days. If 100 women are randomly selected, find the probability that they have a mean pregnancy between 263 days and 265 days.
A. 0.3661
B. 0.7881
C. 0.5517
D. 0.2119
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