Probability that the sum of two dice is 10 or greater?

Probability that the sum of two dice is 10 or greater?

Approach: Count outcomes for 10, 11, and 12.

1/6. Outcomes: (4,6), (5,5), (6,4), (5,6), (6,5), (6,6). 6/36 = 1/6.

Follow-up: What is the probability the sum is exactly 12?

Key concepts: sample space.