Two fair dice are thrown. What is the probability that the sum of the numbers is ?
Answer and explanation
Correct answer: A. 1/6
- 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, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1), giving 6 favourable outcomes.
- Step 3: Divide favourable outcomes by the sample space size: .
Answer
1/6.
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