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A researcher measured the number of coffee cups consumed (X) by 5 students and the number of hours they slept the previous night (Y). The

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A researcher measured the number of coffee cups consumed (X) by 5 students and the number of hours they slept the previous night (Y). The results are presented in the following table: - # of coffee cups Y hours of sleep X 0 2 7.5 6 2 3 Calculate 2X, ZXY, (ZYF, Z(Y-7)2, ZX/S

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