Mathematics, 29.04.2021 19:20 dontcareanyonemo
Randi and Leah are studying together for an exam. Let X represent the number of hours Randi spends studying
nightly, and let y represent the number of hours Leah spends studying nightly. The mean of X is 4.5 hours with a
standard deviation of 1.1 hours, and the mean of Yis 3.7 hours with a standard deviation of 1.8 hours Assuming
these are independent random variables which answer choice correctly calculates and interprets the standard
deviation of the sum, S = X+Y?
Answers: 2
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Randi and Leah are studying together for an exam. Let X represent the number of hours Randi spends s...
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