Mathematics, 06.03.2021 07:30, MansellS6756

The lengths of pregnancies are normally distributed with a mean of 267 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 4%, then the baby is premature. Find the length that separates premature babies from those who are not premature.

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The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation...