Two fair dice are thrown. What is the probability that the sum of the numbers is ?
Answer and explanation
Correct answer: D. 5/36
- Step 1: The sample space for rolling two fair six-sided dice contains equally likely outcomes.
- Step 2: Identify the favourable outcomes yielding a sum of : (1, 5), (2, 4), (3, 3), (4, 2), (5, 1), giving 5 favourable outcomes.
- Step 3: Divide favourable outcomes by the sample space size: .
Answer
5/36.
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