Mathematics, 19.05.2021 07:00, jwdblue

The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 307 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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a. The probability that a pregnancy will last 307 days or longer is
(Round to four decimal places as needed)

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The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation...