18.05 Study Guide - Midterm Guide: Mit Opencourseware
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Number of ways to pick any 5 cards out of 52: Note: this is a set of practice problems for exam 1. The actual exam will be much shorter: we build a full-house in stages and count the number of ways to make each stage: Choose the pair from that rank, i. e. pick 2 of 4 cards: Choose the rank of the triple (from the remaining 12 ranks): 6 (a) there are ways to choose the 2 people to boil water, and 15 ways to choose the people to make scones. So the total number of ways to choose people for these tasks is ways to choose the 3 people to set the table, then. 14 (b) the number of ways to choose 10 of the 20 people is 20 the number of ways to. So the probability that you only choose 10 people from the 14 republicans is choose 10 republicans is.
