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the pregnancy length in days for a population of new mothers can be approximated by a...

the pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 270 days and a standard deviation of 11 days. A. what is the maximum pregnancy length that can be in the top 11% of pregnancy lengths? B. what is the maximum pregnancy length that can be in the bottom 6% of pregnancy lengths

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