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If the odds in favor of Fast Leg winning a horse race are 7 to 3...

If the odds in favor of Fast Leg winning a horse race are 7 to 3 and the first prize is $20,000, what is the expected value of Fast​ Leg's winnings?

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P(Fast Leg's winnings)=7/(3+7)=7/10=0.7

Expected value of Fast​ Leg's winnings=0.7*20000=14000

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