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

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Basic Math

The lengths of pregnancies are normally distributed with a meanof

267 days and a standard deviation of 15 days. a. Find theprobability of a pregnancy lasting

308 days or longer. b. If the length of pregnancy is in thelowest 3%, then the baby is premature. Find the length thatseparates premature babies from those who are not premature.

Answer & Explanation Solved by verified expert
4.4 Ratings (899 Votes)
Answer aHere we need to find pX 308To find the required probability first we need to find the zscorez Xmeanstandard    See Answer
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