Reteach and Skills Practice Workbook

16–1
Name
Reteach
Date
4SDAP2.2, 4SDAP2.1
Probability and Outcomes
The chance, or likelihood, that something
will happen is called probability.
Look at the spinner at the right. You could
spin 1, 2, 3, 4, 5, or 6. There are
6 possible outcomes.
• The probability of spinning each
number is equally likely.
• It is impossible to spin an 8.
5
6
4
1
3
2
Chapter Resources
• It is certain that you will spin a
number greater than 0.
Look at the spinner at the right.
• The probability of spinning a 7 is
unlikely.
• The probability of spinning an 8 is
likely.
7
8
8
8
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Look at the spinner at the right. Use the words certain, likely, equally
likely, unlikely, or impossible to describe the probability.
1. The probability of spinning 12 is
2. It is that you will
land on a number greater than 2.
3. It is that you will
land on a number less than 2.
4. It is that you will
land on a number less than 9.
5. It is
that you will land on an odd
or even number.
.
7
6
8
5
1
4
2
3
6. It is to land on a
number greater than 8.
Grade 4 287 Chapter 16