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Mathematics 20 Online
OpenStudy (anonymous):

An experiment consists of rolling two fair dice and adding the dots on the two sides facing up. What is the probability that the sum of the dots is 9? A 1/9 B 1/36 C 1/18 D 1/6

OpenStudy (anonymous):

To get a sum of 9, you could get pairs: (3,6), (6,3), (4,5), (5,4). That'd be 4/36, or 1/9. A.

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