### Home > GC > Chapter 8 > Lesson 8.1.4 > Problem 8-42

8-42.

**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: *8-42 HW eTool*