Question

Asked Nov 21, 2019

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1

Step 1

It is given that the annual rainfall in a certain region is normally distributed with mean 40 and standard deviation is 4.

Consider that *X* is a random variable defined as the annual rainfall.

Thus,

Step 2

The probability that the rainfall in a year is above 50 inches is:

Step 3

The number of years it will take before there is a year occur having over 50 inches rainfall.

Conside...

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