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Question 2 The average annual precipitation for Vancouver B.C. is 62.3 inches with a standard deviation of 10.2 inches. [5] a) What is the probability

Question 2

The average annual precipitation for Vancouver B.C. is 62.3 inches with a standard deviation of 10.2 inches. [5]

a) What is the probability that the mean annual precipitation of 45 randomly selected years will be greater than 65 inches? [3]

b) Is it necessary to assume that annual precipitation follows a Normal distribution? Briefly explain your answer.

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