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Given a normal distribution with = 50 and = 5 if you select a sample of = 100, what is the probability that is (a)

Given a normal distribution with = 50 and = 5 if you select a sample of = 100, what is the probability that is (a) less than 47? (b) between 47 and 49.5? (c) above 51.1? (d) There is a 35% chance that is above what value

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