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Mathematics, 25.03.2021 19:00 mia6291

The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of days. a. Find the probability of a pregnancy lasting 15 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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