Posted by **cassidy** on Wednesday, October 4, 2006 at 1:09am.

If two dice are rolled, what is the probability that their sum will be a number greater

than 5 ?

[A]1/6 [B]1/3 [C]13/18 [D]5/6 [E] None of these.

i think it is c am i right?

13/18

so i am right?

What is the probability the sum is 2,3,4 or 5? If you find that and subtract it from 1 you'll have the probability the sum is greater than 5.

The sample space has 36 possible outcomes. There's 1 way to get 2, 2 ways to get 3, 3 ways to get 4 and 4 ways to get a 5. There are 1+2+3+4 outcomes whose sum <=5, or the prob. the sum <=5 is 10/36. So 1 - 10/36 = 26/36 is the probability the sum is greater than 5

So yes, you're right, but I don't know what your reasoning is; be prepared to defend, i.e. explain, your answer.

## Answer this Question

## Related Questions

- algebra - two dice are rolled. if a 3 appears on either dice,then the two dice ...
- statistics - 2. Two fair dice are rolled at the same time and the number of dots...
- probability - two fair six-sided dice are rolled and the sum of the dots on the ...
- Probability - Two fair dice are rolled together. The probability that the sum ...
- math - a pair of dice is rolled. is the event of rolling a sum of the dice is an...
- Probability - When two fair six-sided dice are rolled, there are 36 possible ...
- math - Two dice are rolled. Find the probability of getting a sum greater than 8...
- math - Two dice are rolled. Find the probability of getting a sum greater than 8
- Math - when two fair dice are rolled find the probability that the sum is even ...
- math - two dice are rolled find the probability of getting a 5 on either dice or...