In Exercises 1720, does the problem involve permutations or combinations? Explain your answer. A medical researcher needs

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In Exercises 17–20, does the problem involve permutations or combinations? Explain your answer.

A medical researcher needs 6 people to test the effectiveness of an experimental drug. If 13 people have volunteered for the test, in how many ways can 6 people be selected?

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College Algebra

ISBN: 9780134453262

7th Edition

Authors: Robert F Blitzer

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