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Alona [7]
3 years ago
15

In the game of​ roulette, a player can place a ​$8 bet on the number 17 and have a StartFraction 1 Over 38 EndFraction probabili

ty of winning. If the metal ball lands on 17​, the player gets to keep the ​$8 paid to play the game and the player is awarded an additional ​$280. ​ Otherwise, the player is awarded nothing and the casino takes the​ player's ​$8. What is the expected value of the game to the​ player? If you played the game 1000​ times, how much would you expect to​ lose?
Mathematics
1 answer:
svp [43]3 years ago
3 0

Answer:

Expected value of the game: -$0.421

Expected loss in 1000 games: $421

Step-by-step explanation:

There are two possible outcomes for the event:

- There is a 1 in 38 chance of winning $280

- There is a 37 in 38 chance of losing $8

The expected value for a single game is:

E(X) = \frac{1}{38}*\$280-\frac{37}{38}*\$8\\E(X)=-\$0.421

The expected value of the game is -$0.421

In 1,000 plays, the expected loss is:

L = 1,000*-\$0.421\\L=-\$421

You would expect to lose $421.

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