Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 11824 - 11.6 - Counting Principles - 11.6 Exercises - Page 824: 59


There are $5,586,853,480$ different ways to form this jury.

Work Step by Step

The order in which the people are selected is not important. It is a combination of 12 people from a group of 40 people. $_{40}C_{12}=\frac{40!}{(40-12)!~12!}=\frac{40\times39\times38\times37\times36\times35\times34\times33\times32\times31\times30\times29\times28!}{28!~12!}=5,586,853,480$
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