Question 199006: Two standard dice are rolled. What is the probability of the sum on the two dice being less than 10.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Two standard dice are rolled. What is the probability of the sum on the two dice being less than 10.
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Draw the sample space which is
a 6 by 6 square with the sums listed:
2,3,4,5,6,7
3,4,5,6,7,8
4,5,6,7,8,9
...
...
7,8,9,10,11,12,
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Count the sums that are less than 10: 30
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P(sum less than 10) = 30/36 = 5/6
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Cheers,
Stan H.
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