Chapter 12 - Data Analysis and Probability - 12-8 Probability of Compound Events - Practice and Problem-Solving Exercises - Page 769: 28

1/12

You do not replace the coins, so the events are dependent: P(penny)=$\frac{2}{9}$ -2 of the 9 coins is a quarter- P(dime after penny)=$\frac{3}{8}$ -3 of the 8 remaining coins are dimes- Probability: P( penny then dime)=P(penny) $\times$ P(dime after penny) P( penny then dime)=$\frac{2}{9}$ $\times$ $\frac{3}{8}$ P( penny then dime)=$\frac{1}{12}$