Question

The mathematics department of a college has 12 male professors, 12 female professors, 12 male teaching assistants, and 11 female teaching assistants. If a person is selected at random from the group, find the probability that the selected person is a teaching assistant or a female.

Answer 1

First you need to know how many people there are in total. Once you find that, add up the number of total assistants and the 12 female teachers. Divide this number by the total teachers and assistants that you found first. This will give you a decimal answer that you can convert to a percentage.