Mathematics, 06.02.2021 01:00 ayandjay01

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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