Two fair dice are thrown. What is the probability that the sum is 7?
Answer and explanation
Correct answer: D.
- Step 1: There are equally likely outcomes. Step 2. Six of them give sum 7: , so the probability is . **Answer: . Why not the others:** counts only three of the six pairs, uses seven favourable cases, and treats the eleven sums from 2 to 12 as equally likely.
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