Final answer:
The probability of rolling a total of 2 on two number cubes is 1/36.
Step-by-step explanation:
To find the probability that the total of Greg's roll equals 2, we need to determine the number of favorable outcomes and the total number of possible outcomes. Since Greg rolls two number cubes, each numbered from 1 to 6, the total number of outcomes is 6 x 6 = 36.
The favorable outcomes are when the sum of the numbers on the cubes is 2. There is only one way to get a sum of 2: rolling a 1 on both cubes. Therefore, there is 1 favorable outcome.
The probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes: 1 / 36.