Answer
$P(E~or~F)=0.495$
Work Step by Step
$P(E~and~F)=0.105$
Using the General Addition Rule (page 273):
$P(E~or~F)=P(E)+P(F)-P(E~and~F)=0.15+0.45-0.105=0.495$
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 5 - Review - Test - Page 317: 6b
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