Mathematics, 15.07.2019 13:00 sross8799

The lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation of 15 days. a. find the probability of a pregnancy lasting 308 days or longer. b. if the length of pregnancy is in the lowest 2 %, then the baby is premature. find the length that separates premature babies from those who are not premature.

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