Two fair dice are thrown. What is the probability that the sum of the numbers is ?
Answer and explanation
Correct answer: A. 1/18
- 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, 2), (2, 1), giving 2 favourable outcomes.
- Step 3: Divide favourable outcomes by the sample space size: .
Answer
1/18.
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