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Let the Random Variable XX Represent the Winnings at One Play of Game A

Question 15

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Let the random variable XX represent the winnings at one play of game A. The mean, μ\mu , of XX is known to be $0.42- \$ 0.42 and its standard deviation, σ\sigma , is $0.27\$ 0.27 . Let the random variable YY represent the winnings at one play of game BB . The mean, μ\mu , of YY is known to be $0.42- \$ 0.42 and its standard deviation, σ\sigma , is $0.20\$ 0.20 . You have decided to play one of these two games just once. At which game are you more likely to make a profit (i.e., to not lose money)? Explain your thinking.

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