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: 26c

Answer

$P(none~of~the~four~auto~racing~fans~prefers~NASCAR)=0.02825761$

Work Step by Step

$59$% $=0.59$ $P(auto~racing~fan~prefers~NASCAR)=0.59$ The event "auto racing fan does not prefer NASCAR" is the complement of "auto~racing~fan~prefers~NASCAR". Using the Complement Rule (see page 275): $P(auto~racing~fan~does~not~prefer~NASCAR)=1-P(auto~racing~fan~prefers~NASCAR)=1-0.59=0.41$ Using the Multiplication Rule (see page 282): $P(none~of~the~four~auto~racing~fans~prefers~NASCAR)=P(auto~racing~fan~1~does~not~prefer~NASCAR)\times P(auto~racing~fan~2~does~not~prefer~NASCAR)\times P(auto~racing~fan~3~does~not~prefer~NASCAR)\times P(auto~racing~fan~4~does~not~prefer~NASCAR)=0.41\times0.41\times0.41\times0.41=0.02825761$
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