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6. Suppose that the time spent online to do homework by a randomly selected student has a gamma distribution with mean 20 minutes and variance

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6. Suppose that the time spent online to do homework by a randomly selected student has a gamma distribution with mean 20 minutes and variance 80 minutesz. (a) What are the values of a and B? (b) What is the probability that a student spends online at most 24 minutes? (0) What is the probability that a student spends between 20 and 40 minutes online

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