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A card is drawn at random from a deck consisting of cards numbered 2 through 10. a player wins 1 dollar if the number on the card is odd and loses 1 dollar if the number if even. what is the expected value
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A card is drawn at random from a deck consisting of cards numbered 2 through 10. a player wins 1 dollar if the number on the card is odd and loses 1 dollar if the number if even. what is the expected value of his win- nings?

User Eugene Katz
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50% chance of winning and 50% chance of losing.
User Frozen
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