Engineering Board Exam Reviewer · Basic Probability · easy
Two fair dice are rolled. What is the probability that the sum is 9?
- 1/12
- 1/9
- 1/6
- 5/36
Answer
B. 1/9
Solution
The sum is 9 for (3,6),(4,5),(5,4),(6,3): 4 outcomes out of 36, so 436= 19.
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