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Quantitative Usability, Statistics & Six Sigma by Jeff Sauro




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Asked on July 19, 2008 :: Question was Answered in 0 Days 7 Hours & 14 Minutes

Question : The lengths of pregnancies are normally distributed with a mean of 264 days and a standard deviation of 25 days. If 100 women are randomly selected, find the probability that they have a mean pregnancy between 264 days and 266 days.

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Area between2
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