1 At a convention there are 7 mathematics instructors 5 comp

1. At a convention there are 7 mathematics instructors, 5 computer science instructors, 3 statistics instructors, and 4 science instructors. If an instructor is selected, find the probability of getting a science instructor or a math instructor.

probability of getting a science instructor or a math instructor. = 7 C 1 / 19 C 1 = 7/19 = 0.3684