1. Counting Outcomes 8-6.6 Apply procedures to compute the odds of a given event.

2. Tree diagrams and the Fundamental Counting Principle are two methods used for counting outcomes. Use tree diagrams when it is necessary to know the specific possible outcomes or when the number of choices is small. Use the Fundamental Counting Principle when there are many choices, the numbers are large, the number of possible outcomes are needed quickly, or a list of specific possible outcomes is not necessary.

3. How Do I Make a Tree Diagram? List what happens with the first trial. List what happens with the second and third (and so on) trials. Draw lines and list the options.

4. A greeting card maker offers three birthday greetings in four possible colors, as shown below. Draw a tree diagram to find the number of cards that can be made from three greeting choices and four color choices. GreetingColor HumorousBlue TraditionalGreen RomanticOrange Red

5. Make a Tree Diagram

6. 12

7. A cell phone company offers 3 payment plans, 4 styles of phones, and 6 decorative phone wraps. How many phone options are available?

8. 72