Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 5 - Section 5.6 - Assess Your Understanding - Applying the Concepts - Page 312: 21e

Answer

$P(female~or~survived)=\frac{820}{2224}\approx0.3687$

Work Step by Step

1) OR 2) The events are not mutually exclusive. Use the General Addition Rule (page 273): From (a): $P(survived)=\frac{711}{2224}$ From (b): $P(female)=\frac{425}{2224}$ From (d): $P(female~and~survived)=\frac{316}{2224}$ Now: $P(female~or~survived)=P(female)+P(survived)-P(female~and~survived)=\frac{711}{2224}+\frac{425}{2224}-\frac{316}{2224}=\frac{820}{2224}\approx0.3687$
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