Finite Math and Applied Calculus (6th Edition)

by Waner, Stefan; Costenoble, Steven

Published by Brooks Cole

ISBN 10: 1133607705

ISBN 13: 978-1-13360-770-0

Chapter 6 - Section 6.4 - Permutations and Combinations - Exercises - Page 438: 63b

Answer

$3$

Work Step by Step

Choosing three tech stocks out of the 3 declined tech stocks: $C(3,3)=1$ choices. Choosing two non-tech stocks out of the 3 that declined : $C(3,2)=3$ choices. Therefore there are $1*3=3$ such collesctions

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