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1. It can be inferred from data that the average length of gestation for a human...

1. It can be inferred from data that the average length of gestation for a human is a normally distributed random variable X having a mean of 280 days (i.e., 40 weeks) and a standard deviation of 19.88 days. Find the following (hint: convert weeks to days):

IF YOU KNOW HOW TO USE EXCEL, PLEASE PUT INTO EXCEL AND SOLVE WITH EXCEL, will upvote:)!

  1. P(X ≥ 41weeks)
  2. The probability of a gestation time between 37 and 42 weeks, inclusive.
Math   Statistics-And-Probability   
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Answer #1

Following are the answers calculated using MS Excel for both the parts. We have used NORM.S.DIST function to calcuate the probability.

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