When two dice are rolled, what is the probability that the sum of the numbers appeared on them is 11 ?



When two dice are rolled, what is the probability that the sum of the numbers appeared on them is 11 ?

A. 1/6

B. 1/18

C. 1/9

D. 1

Answer : B. 1/18


Explanation:

    n(S) = 36
    n(E) = {(5,6), (6,5)} = 2
    p(E) = n(E) / n(S)
    = 2/36
    = 1/18.


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