1. Words How many different nine-letter words (i.e., sequences of letters) can be made by using four...

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1. Words How many different nine-letter words (i.e., sequences of letters) can be made by using four Ss and five Ts?
2. Twenty people take an exam. How many different possibilities are there for the set of people who pass the exam?
3. A survey at a small New England college showed that 400 students skied, 300 played ice hockey, and 150 did both. How many students participated in at least one of these sports?
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Finite Mathematics and Its Applications

ISBN: 978-0134768632

12th edition

Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel, Steven Hair

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