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    NationalHardStatistics7–9

    What is the probability of rolling a sum of 77 with two fair six-sided dice?

    Qual é a probabilidade de obter soma 77 com dois dados equilibrados de seis faces?

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    Solution

    Favorable outcomes: (1,6),(2,5),(3,4),(4,3),(5,2),(6,1)=6(1,6), (2,5), (3,4), (4,3), (5,2), (6,1) = 6 outcomes. Total =36= 36. P=636=16P = \frac{6}{36} = \frac{1}{6}.