Final answer:
The probability of getting a sum of 7 when 2 dice are thrown together is 1/6.
Step-by-step explanation:
To calculate the probability of getting a sum of 7 when 2 dice are thrown together, we need to find the number of favorable outcomes and divide it by the total number of possible outcomes. The favorable outcomes are (1,6), (2,5), (3,4), (4,3), (5,2), and (6,1), which gives us a total of 6 favorable outcomes. The total number of possible outcomes is 36, as each die has 6 possible outcomes and there are 2 dice. Therefore, the probability of getting a sum of 7 is 6/36, which simplifies to 1/6.