SOLUTION: 1. You roll two dice. What is the probability that you roll (a) doubles? (b) a sum greater than 9? (c) doubles or a sum greater than 9?

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Question 717230: 1. You roll two dice. What is the probability that you roll
(a) doubles?
(b) a sum greater than 9?
(c) doubles or a sum greater than 9?

Answer by solver91311(24713) (Show Source):
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There are 36 possible outcomes when rolling a pair of standard 6-sided dice.

There are 6 different doubles.

There is 1 way to make 12, 2 ways to make 11, and 3 ways to make 10.

There are 6 ways to make doubles and 6 ways to make greater than 9 as we have seen, but two of the ways to make doubles are already counted in the 6 ways to make greater than 9. So 4 plus 6 equals 10 possible successes.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it