Answer:
1/6
Explanation:
There are 36 total combinations from rolling two dice, and only 6 of them produce a sum of 7. These combinations are (1,6), (2,5), (3,4), (4,3), (5,2), and (6,1).
Therefore, rolling a sum of 7 with 2 dice thrown has a probability of 6/36, or 1/6.