Normal DistributionsLength of pregnancy A team of medical
Chapter 8, Problem 45E(choose chapter or problem)
Problem 45E
Normal Distributions
Length of pregnancy A team of medical practitioners deter-mines that in a population of 1000 females with ages ranging from 20 to 35 years, the length of pregnancy from conception to birth is approximately normally distributed with a mean of 266 days and a standard deviation of 16 days. How many of these females would you expect to have a pregnancy lasting from 36 weeks to 40 weeks?
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