The amount of snowfall falling in a certain mountain range

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The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 70 inches, and a standard deviation of 10 inches. What is the probablility that the mean annual showfall during 25 randomly picked years will exceed 72.8 inches?

A. 0.0808

B. 0.5808

C. 0.0026

D. 0.4192

Reference no: EM13625240

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