## CHAPTER 10: PROBABILITY

**Lesson 5: Using Tree Diagrams to Calculate Probability **

**Goal**

Determine probabilities using a tree diagram.

**Instructions for Use**

**On Stage Probability**

Follow the instructions to solve the problem about who will get the parts of Dorothy, the Tin Man, the Scarecrow, and the Lion in the school play. You will use a tree diagram to display possible outcomes for who will play each part. You can then use this tree to answer various probability questions.

**Me Too Probability**

Follow the instructions to solve the problem about who is coming to the party. You will use a tree diagram to display possible outcomes for who will come to the party. You can then use this tree to answer various probability questions about the guests.