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The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 75inches, and a standard deviation of 16 inches. What

The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 75inches, and a standard deviation of 16 inches. What is the probability that the mean annual precipitation during64 randomly picked years will be less than 77.8 inches?A)0.9192

B)0.4192

C)0.0808

D)0.5808

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