Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 11 - Counting Methods and Probability Theory - 11.3 Combinations - Exercise Set 11.3: 1

Answer

combinations

Work Step by Step

A permutation from a group of items occurs when no item is used more than once and the order of arrangement makes a difference. A combination from a group of items occurs when no item is used more than once and the order of items makes no difference. ------------ In order to form this group, it does not matter which volunteer is selected first, which is second, etc. The order in which the volunteers are chosen makes no difference, so this problem involves combinations.
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