The annual rainfall (in inches) in a certain region is normally distributed withμ = 40 and o = 4. What is the probability that, starting with this year, it will takeover 10 years before a year occurs having a rainfall of over 50 inches? Whatassumptions are you making?6. Suppose that X is a normal random variable with mean 5. If Pr(X> 9) = 0.33,approximately what is V(X)?

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A First Course in Probability (10th Edition)

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Chapter1: Combinatorial Analysis

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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The annual rainfall (in inches) in a certain region is normally distributed with μ = 40 and o = 4. What is the probability that, starting with this year, it will take over 10 years before a year occurs having a rainfall of over 50 inches? What assumptions are you making?