What is the probability that the sum of outcomes of three dice thrown together is 9?
The total number of permutations of 3 dice are 6
3 = 216.
There are 25 total permutations of 3 dice summing to 9:
6 permutations of {1,2,6}, 6 permutations of {1,3,5},
3 permutations of {1,4,4}, 3 permutations of {2,2,5}, and
1 permutation of {3,3,3}.
The probability of the sum of 9 for 3 dice is 25/216 ~= 0.115741.
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Posted by Dej Mar
on 2009-11-20 16:08:34 |
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