Two dice are rolled. Find the probability that the sum was a 9 given that one of the numbers was a 4.
A) 1/11
B) 1/12
C) 1/6
D) 2/11

Name: Two dice are rolled. Find the probability that the sum was a 9 given that one of the numbers was a 4. A) 1/11 B) 1/12 C) 1/6 D) 2/11
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Question

Quizplus · Accepted Answer

There are 11 possible outcomes where one die shows a 4: (4,1), (4,2), (4,3), (4,4), (4,5), (4,6), (1,4), (2,4), (3,4), (5,4), (6,4). Out of these, only (4,5) and (5,4) sum to 9. Thus, the probability is 2/11.

Two Dice Are Rolled