Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321755936
ISBN 13: 978-0-32175-593-3

Chapter 4 - Discrete Random Variables - Exercises 4.50 - 4.76 - Applying the Concepts - Basic - Page 205: 4.63b

Answer

$E(x)=40$

Work Step by Step

$E(x)=np=100(.4)=40$
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