# Lesson 3 Skills Practice Probability of Compound Events −

```NAME _____________________________________________ DATE __________________ PERIOD _________
Lesson 3 Skills Practice
Probability of Compound Events
The spinner at the right is spun twice.
1. Draw a tree diagram to represent the
situation.
C
2. What is the probability of getting at
5
least one A? −
A
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9
For each situation, make a tree diagram to show the
sample space. Then give the total number of outcomes.
3. choosing a hamburger or hot dog and potato salad or
Entree
Sample Space
potato
macaroni
potato
macaroni
hamburger
There are 4 possible
outcomes.
hot dog
4. choosing a vowel from the word COMPUTER
and a consonant from the word BOOK
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There are
6 possible
outcomes.
Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.
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5. choosing between the numbers 1, 2 or 3, and the
colors blue, red, or green
Number
1
2
3
142
Color
Sample Space
blue
1, blue
red
green
1, red
1, green
blue
2, blue
red
green
2, red
2, green
blue
3, blue
red
green
3, red
3, green
There are
9 possible
outcomes.
Course 2 • Chapter 9 Probability
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