Posted by **Hannah** on Sunday, April 18, 2010 at 3:12pm.

Suppose you play a game in which two fair standard dice are rolled. If the numbers showing on the dice are different, you lose $2. If the numbers showing are the same, you win $2 plus the dollar value of the sum of dice. Complete the next table, in which the values in the first column are the outcomes for the rolls of teh two dice. The second column has the probabilities for those outcomes, and the third column has the payoff values for each outcome. What is the expected value of the game?

- Math -
**Reiny**, Sunday, April 18, 2010 at 3:55pm
Suppose you play the game 36 times. (all possible outcomes)

Your critical outcomes are

1,1 ---expected return = (1/36)(2) + 2 = 2.0555

2,2 ---expected ret;urn = (1/36)(2) + 4 = 4.0555

.

.

6,6 ---expected return = (1/36)(2) + 12 = 12.0555

the expected winnings are 2.0555+4.0555+6.0555+8.0555+10.0555+12.0555

= 42.3333

the other 30 outcomes would all result in a loss of 2

expected losses = (30/36)(2) = 1.6666666

The expected value of the game is $40.67 for 36 game.

So the expected value of one game is 40.67/36 or $1.13

## Answer this Question

## Related Questions

- math - A pair of dice is rolled once. suppose you lose $9 if the dice sum to 9 ...
- math - Suppose someone gives you 8 to 2 odds that you can not roll two even ...
- Math - At this year's State Fair, there was a dice rolling game. If you rolled ...
- Statistics - In a game you roll two fair dice. If the sum of the two numbers ...
- algebra - two dice are rolled. if a 3 appears on either dice,then the two dice ...
- probabbility - Find the (theoretical) probability of a given event, assuming ...
- math - A fair 6 sided dice is marked with the numbers 1, 2, 3, 4,5, and 6. The ...
- Elementary Statistics - 10. In a game of “chuck a luck” three dice are rolled. ...
- math - In rolling a pair of dice, suppose you win $5 if the sum is 10 but lose $...
- Math Probability - Find the (theoretical) probability of a given event, assuming...