Mathematics, 14.12.2020 21:30, DantesinfernoxD9964

The mean and standard deviation of "Y = the number of 2-inch binders purchased by a single customer" is 2.74 and 1.25, respectively. Assume that the number of 1-inch and 2-inch binders
purchased are independent random variables. What are the mean and standard deviation of the total
number of binders purchased by a single customer?

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The mean and standard deviation of "Y = the number of 2-inch binders purchased by a single customer...