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23. A survey of IU students reveals that 10% of the fresh- men, 15% of the sophomores, 60% of the juniors, and 85% of the seniors like Finite Math. Given that 30% of all students are freshmen, 30% are sophomores, 20% are juniors, and 20% are seniors, what percent age of the student population like Finite Math? (a) .635 (b) .535 (c) .465 (d) .365 (e) 235 (f) none of the above
11. A jury of five must decide whether Vasile will pass the Finite Math examination. In order for Vasile to pass, at least four of the jurors must be in favor. In how many different ways can Vasile pass? (a) 16 (b) 6 (c) 5 (d) 4 (e) 32 (f) none of the others
4. A finite math quiz consists of one counting problem, one probability problem, and one silly problem. Pro- fessor Umbuggio has 4 counting problems, 5 proba- bility problems, and 2 silly problems to choose from. How many different quizzes can he prepare? (a) 20 (b) 40 (c) C(11,3) () P(11,3) (e) 10 (f) none of the above