Expected value in win or lose

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In a game, you have a 1/20 probability of winning $76 and a 19/20 probability of losing $9. What is your expected value?   

Jun 16th, 2015

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Probability Amount Expected Value
0.05 76.00 3.8
0.95 -9.00 -8.55

Total Expected Value -4.75

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Jun 16th, 2015

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