Introductory Statistics 9th Edition

Published by Wiley
ISBN 10: 1-11905-571-7
ISBN 13: 978-1-11905-571-6

Chapter 4 - Self-Review Test - Page 173: 14

Answer

a.P(female|out-of-state)=$\frac{70}{125}$=0.56 P(female) = $\frac{110}{200}$=0.55 P(female ∩ out-of state) = $\frac{70}{200}$ = 0.35 Female and out-of-state are not independent since P(female|out-of-state) $\ne$ P(female) . Female and out-of-state are not mutually exclusive since P(female ∩ out-of state) = 0.35 $\ne$ 0 b. i. P(male) = $\frac{90}{200}$ = 0.45 ii. P(out-of-state student|female) = $\frac{70}{110}$ = 0.6364

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