Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 10 Counting Methods and Probability - 10.5 Find Probabilities of Independent and Dependent Events - 10.5 Exercises - Skill Practice - Page 721: 17



Work Step by Step

For dependent events, we know the following equation: $$ P(A\ and \ B)=P(A) \cdot P(B|A) $$ Thus, we find: $$ P(A\ and \ B)=(.7)(.5)=.35 $$
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