### Home > CCG > Chapter 10 > Lesson 10.1.1 > Problem10-12

10-12.

Multiple Choice: A penny, nickel, and dime are all flipped once. What is the probability that at least one coin comes up heads?

1. $\frac {1} {3}$

1. $\frac {3} {8}$

1. $1$

1. $\frac {7} {8}$

Draw a tree diagram that illustrates all the possible combinations that could occur.
Then add up the probabilities of each combination that includes a coin coming up heads.

Use the eTool below to support your ideas!
Click on the link at right for the full eTool version: CCG 10-12 HW eTool