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Assume that the population mean weight for ten year old boys is μ = 88 pounds...

Assume that the population mean weight for ten year old boys is μ = 88 pounds with population standard deviation σ = 2.2 pounds. Also assume that the data is normally distributed. What proportion of ten year old boys weigh more than 91 pounds?

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Proportion of ten year old boys weigh more than 91 pounds is

0.0863

◆ Probability calculation-

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