10. Let X and Y be the outcomes of two independent dies and each die takes value of {1,2,3,4,5, 6} equally. Define W = X + Y. What is P(X = 3|W = 8) ?
(A)1/2
(B) 1/3
(C) 1/4
(D) 1/5
(E) 1/6

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統計： A(0), B(0), C(0), D(1), E(1) #2852336