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5. Suppose that the height of an adult hobbit lies in a normal distribution with = 40 inches and = 3 inches. (a) What is

5. Suppose that the height of an adult hobbit lies in a normal distribution with = 40 inches and = 3 inches. (a) What is the probability that an adult hobbit is within one standard deviation of the average height? (b) How tall must an adult hobbit be in order to be taller than 90% of the population?

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