In: Math
1. Jacobs & Johnson, an accounting firm, employs 15 accountants, of whom 9 are CPAs. If a delegation of 3 accountants is randomly selected from the firm to attend a conference, what is the probability that 3 CPAs will be selected? (Round your answer to three decimal places.)'
2. Among 500 freshmen pursuing a business degree at a university, 301 are enrolled in an economics course, 220 are enrolled in a mathematics course, and 130 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 each of the following? (Enter your answers to three decimal places.)
(a) an economics and/or a mathematics course
(b) exactly one of these two courses
(c) neither an economics course nor a mathematics course