Answer
$\mu=250$
$\sigma=11.18$
Work Step by Step
$q=1-p=1-.50=.50$
$\mu=np=500(.50)=250$
$\sigma=\sqrt {npq}=\sqrt {500(.50)(.50)}=11.18$
Statistics (12th Edition)
by McClave, James T.; Sincich, Terry T.
Published by
Pearson
ISBN 10:
0321755936
ISBN 13:
978-0-32175-593-3
Chapter 5 - Continuous Random Variables - Exercises 5.73 - 5.92 - Applying the Concepts - Basic - Page 256: 5.80a
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