1. Splash Screen

2. Five-Minute Check (over Lesson 6–7) Main Idea and Vocabulary
Example 1: Find the Mean
Key Concept: Median
Example 2: Find the Median
Key Concept: Mode
Example 3: Find the Mode
Lesson Menu

3. I will find the mean, median, and mode of a set of data.
Main Idea/Vocabulary

4. Step 1 Find the sum of the data. 100 + 40 + 88 + 90 + 92 = 410
Find the Mean
Elijah received the following scores on his math test: 100, 40, 88, 90, 92. Find the mean of the data.
Step 1 Find the sum of the data.
= 410
Step 2 Divide the number of pieces of data.
410 ÷ 5 = 82
Answer: So, the mean of Elijah’s math test scores is 82.
Example 1

5. Julia received the following scores on her English tests: 100, 92, 88, 96, 98. Find the mean of the data. 95 98 93 96 A B C D
Example 1

6. KC

7. Step 1 Order the numbers from least to greatest.
Find the Median
Find the median of the data: 92, 84, 97, 96, 88, 87, 90, 91, 91, 90, 93, 93
Step 1 Order the numbers from least to greatest.
84, 87, 88, 90, 90, 91, 91, 92, 93, 93, 96, 97
Step 2 The middle two numbers are 91 and 91.
The median is the average of these two numbers, 91.
Answer: So, the median of the data is 91.
Example 2

8. Find the median of the data below.
32, 31, 31, 35, 36, 38, 32, 32, 40, 39, 35, 39 31 32 34 35 A B C D
Example 2

9. KC

10. Step 1 Order the numbers from least to greatest.
Find the Mode
The costs of a loaf of wheat bread in different grocery stores are shown below. Find the mode of the data. $1.19, $1.49, $0.95, $1.30, $1.19, $1.30, $1.10, $1.25
Step 1 Order the numbers from least to greatest.
$0.95, $1.10, $1.19, $1.19, $1.25, $1.30, $1.30, $1.49
The prices $1.19 and $1.30 each occur twice. So, the modes are $1.19 and $1.30.
Answer: More grocery stores charge $1.19 or $1.30 than any other price.
Example 3

11. Find the mode of the data.
1.21, 1.30, 1.42, 1.42, 1.30, 1.21, 1.35, 1.65, 1.21, 1.74, 1.45
1.21
1.30
1.42
1.65 A B C D
Example 3

12. End of the Lesson
End Lesson

13. Five-Minute Check (over Lesson 6–7) Image Bank Math Tool Chest
Use an Appropriate Graph
Resources

14. (over Lesson 6–7)
Use the work backward strategy to solve. James has two dogs. When measured from tail to nose, his large dog is 3 times longer than his small dog, plus 2 inches. If his large dog is 47 inches long, how long is his small dog?
25 inches
20 inches
15 inches
6 inches A B C D
Five Minute Check 1

15. End of Custom Shows