Among 500 freshmen pursuing a business degree at a university, 306 are enrolled in an economics course, 225 are enrolled in a mathematics course, and...

Among 500 freshmen pursuing a business degree at a university, 306 are enrolled in an economics course, 225 are enrolled in a mathematics course, and 149 are enrolled in both an economics and a mathematics course. What is the probability that a freshman selected at random from this group is enrolled in