Question 561454
A player pays $1 to play and wins $2 if the dart lands in the sections marked B. If B = 6/13, how much money will the player make or lose after 36 turns?
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Expected gain = 2*(6/23) + -1(7/23) = 0.2174 dollars
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So the player can expect to win 21.74 cents each time he plays.
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In 36 games he can expect to win 36*21.74 cents = $7.83 
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Cheers,
Stan H,