Two fair dice are thrown. What is the probability that the sum of the numbers is ?
Answer and explanation
Correct answer: B. 1/12
- Step 1: When two standard six-sided dice are thrown, the total number of equally likely outcomes in the sample space is .
- Step 2: List the favorable pairs of numbers that sum to : (1, 3), (2, 2), (3, 1), which gives 3 favorable outcomes.
- Step 3: Calculate the probability as the ratio of favorable outcomes to total outcomes: .
Answer
1/12.
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