Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 5 - Section 5.3 - Assess Your Understanding - Applying the Concepts - Page 285: 26d

Answer

$P(at~least~one~auto~racing~fan~prefers~NASCAR)=0.97174239$

Work Step by Step

The event "at least one auto racing fan prefers NASCAR" is the complement of "none of the four auto racing fans prefers NASCAR". Using the Complement Rule (see page 275): $P(at~least~one~auto~racing~fan~prefers~NASCAR)=1-P(none~of~the~four~auto~racing~fans~prefers~NASCAR)=1-0.02825761=0.97174239$
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