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The lengths of pregnancies are normally distributed with a mean of 272 days and a standard deviation...

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Statistics

The lengths of pregnancies arenormally distributed with a mean of 272 days and a standarddeviation of 16 days.

  1. Find the probability that a pregnancy lasts more than 295days.
  2. If we stipulate that a baby is premature if the length ofpregnancy is in the lowest 3%, find the length of pregnancy thatseparates premature babies from those who are not premature.

Answer & Explanation Solved by verified expert
3.8 Ratings (688 Votes)
Here we use the properties    See Answer
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