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March 4, 2015

March 4, 2015

Posted by **Larry** on Monday, November 3, 2008 at 6:09pm.

Two dice are rolled. What is te probability of each event?

1. The numbers total 9.

2. The numbers total 2.

3. Both dice display the same number.

4. The sum of the numbers is not 8.

Please help, I don't get this.

- Math -
**economyst**, Tuesday, November 4, 2008 at 9:01amWith two (fair) dice, there are 6*6=36 possible rolls. (1-1, 1-2, 1-3, ... 6-6) (hint: you could easily write all possible outcomes on a piece of paper)

So, to get 9, one could have a 6-3, 3-6, 4-5, or 5-4. So, the probability is 4/36 = .11111.

Take it from here

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