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

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?

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: *10-12 HW eTool* (CPM)