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7. The average number of tickets to a concert in a single purchase is 2.5 with a standard deviation of 1.75. h a. Is the

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7. The average number of tickets to a concert in a single purchase is 2.5 with a standard deviation of 1.75. h a. Is the population of ali single purchases oftickets to a concert normanydistributdaExplain, b. Would you be able to calculate the probability that a SRS of 4 purchases has an average of between 2-3 tickets purchased? If so. calculate it. if not, state why this cannot be calculated

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