the mathematics department of a college has 6 male professors, 6 female professors, 13 male teaching assistants, and 9 female teaching assistants. If a person is selected at random what is the probablity that the selected person is professor or male?

Question

the mathematics department  of a college has 6 male professors, 6 female professors, 13 male teaching assistants, and 9 female teaching assistants. If a person is selected at random what is the probablity that the selected person is professor or male?

anonymous · Answer

Since it is looking for professors or males you will take everything except the female TA's  
(6+6+13)/total