The mathematics faculty at a college consists of 4 professors, 5 associate professors, 6 assistant professors, and 8 instructors. If one faculty member is randomly selected, find the probability of choosing a professor or an instructor.
first you add everyone together. 8+6+5+4=23 since there are 5 associate professors and 8 instructors you add them together. 4+8=12 you divide the number of professors and instructors by the number of everyone. 12/23=.52 you move the decimal over 1 place and there's your answer. 52%
