Mathematics, 05.05.2020 14:16 coolgirl5679
Each day Donna and Mary toss a coin to see who buys the other person coffee ($2.34 a cup). One tosses and the other calls the outcome. If the person who calls the outcome is correct, the other buys the coffee; otherwise the caller pays. Assume that an honest coin is used, that Mary tosses the coin, and that Donna calls the outcome. Find Mary's expected payback. Is this a fair game?
Now how much is she expected to pay back?
Answers: 3
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Each day Donna and Mary toss a coin to see who buys the other person coffee ($2.34 a cup). One tosse...
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