Question: Develop a discrete probability distribution for x = Age. What is the probability that a student's age is more than 20? What is the mean

Develop a discrete probability distribution for x = Age. What is the probability that a student's age is more than 20? What is the mean age? What is the standard deviation of the ages? Suppose that we consider the distribution of ages to be approximately bell-shaped. We would expect 95% of the ages to lie between and

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