Answer
56.
Work Step by Step
$_{n}C_{r}=\frac{n!}{(n-r)!r!}$
$_{8}C_{3}=\frac{8!}{(8-3)!3!}=\frac{8\times7\times6\times5!}{5!\times3!}=\frac{8\times7\times6}{3\times2\times1}=56$
Elementary Statistics: Picturing the World (6th Edition)
by Larson, Ron; Farber, Betsy
Published by
Pearson
ISBN 10:
0321911210
ISBN 13:
978-0-32191-121-6
Chapter 3 - Probability - Section 3.4 Additional Topics in Probability and Counting - Exercises - Page 174: 9
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
