Determine whether the following individual events are overlapping or non-overlapping. Then find the probability of the combined event.
Getting a sum of either 4,8, or 11 on a roll of two die
They are overlapping. As a hint, think about the number of ways you can get those numbers, (for example 1 and 3, 3 and 1, and 2 and 2 for the 4), add those together, and than take all the possibilities and put it below and divide.
