Question: Student Financial Aid. In a recent year, 8,073,000 male students and 10,980,000 female students were enrolled as undergraduates. Receiving financial aid were 60.6% of the male students and 65.2% of the female students. Of those receiving aid, 44.8% of the males got federal aid and 50.4% of the females got federal aid. Choose 1 student at random. (Hint: Make a tree diagram.) Find the probability that the student is

a. A male student without aid

b. A male student, given that the student has aid

c. A female student or a student who receives federal aid