600 chances are sold at $2 apiece for a raffle. There is a grand prize of $400, two second prizes of $250, and five third prizes of $150. First calculate the expected value of the lottery. Determine whether the lottery is a fair game. If the game is not fair, determine a price for playing the game that would make it fair. The expected value of the game is $ ?.
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1.
The expected value of the lottery
= Prize win - cost per raffle
= (1/600)*(400) + (2/600)*(250) + (5/600)*150 - $2
= $0.75
2. The game will be fair if expected value of lottery =0
Here it is $0.75, so it not zero, hence this is not a fair game
Answer: This is not a fair game
3. To make the game fair therefore the person should pay $0.75
Answer: A price for playing the game that would make it fair: $0.75
4. We calculated this as $0.75 in part a)
Answer: Expected value of this game: $0.75
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