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Mathematics, 19.03.2021 22:00 davfar334p47luq

Elroy enjoys roller skating and weight training. Let X represent the number of hours he spends roller skating weekly, and let y represent the number of hours he spends weight training weekly. The mean of X is 5 hours, and the mean
of Y is 7 hours. Which answer choice correctly calculates and interprets the mean of the sum, S = X + Y?

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Elroy enjoys roller skating and weight training. Let X represent the number of hours he spends rolle...
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