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You get to roll a standard die one time. If you roll an odd number, you win $3.
If you roll a 4, you win $5. If you roll any other number, you lose $9.
Find the expected value for this game.
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The expected value of this game is
E = = = = - 4 .
It means that playing this game many times, the player loses 4.67 dollars per game, in average.
Solved, answered and explained.