Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 12 - Data Analysis and Probability - Chapter Review - Page 790: 44



Work Step by Step

The events are dependent because the marbles are not replaced 4 of the 7 marbles are red: P(red)=$\frac{4}{7}$ 3 of the 6 remaining marbles are red: P(red after red)=$\frac{3}{6}$=$\frac{1}{2}$ P(red then red)=P(red) $\times$ P(red after red) P(red then red)=$\frac{4}{7}$ $\times$ $\frac{1}{2}$ P(red then red)=$\frac{2}{7}$
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