Question: Amy is picking her fall term classes. She needs to fill three time slots, and there are 20 distinct courses to choose from, including probability

Amy is picking her fall term classes. She needs to fill three time slots, and there are 20 distinct courses to choose from, including probability 101, 102, and 103. She will pick her classes at random so that all outcomes are equally likely.
(a) What is the probability that she will get probability 101?
(b) What is the probability that she will get probability 101 and Probability 102?
(c) What is the probability she will get all three probability courses?

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