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There are 216 permutations of three dice. Of these, 15 sum to 7. Therefore, the probability of rolling a sum of 7 with three dice is 15 in 216, or 5 in 72, or about 0.06944.

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1157


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1247


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1337


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1427


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1517


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2147


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2237


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2327


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2417


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3137


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3227


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3317


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4127


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4217


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5117


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Q: What is the probability to roll a sum of 7 with three die?
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