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Mathematics 8 Online
OpenStudy (anonymous):

You and your friend play a game. You flip 4 coins. If the coins result in all tails or all heads you win $10. Otherwise, you pay $2. WHat are your expected winnings? Is this a fai game? If not, who does it favor?

OpenStudy (kc_kennylau):

Expected result = sum of (probability * value of probability)

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