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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: CCG 10-12 HW eTool