Download Analyze Line Plots

Five-Minute Check (over Lesson 7–2)
Main Idea and Vocabulary
Example 1: Make a Line Plot
Key Concept: Range and Outliers
Example 2: Analyze Line Plots
Example 3: Analyze Line Plots
• I will make and interpret line plots.
• line plot
• range
• outlier
Make a Line Plot
Callie surveyed sixteen students to find the
number of pets each owned. The results of her
survey were: 1, 5, 0, 2, 2, 0, 3, 4, 2, 1, 0, 1, 1, 0, 3, 1.
Make a line plot of the data. Then describe the data
presented in the graph.
Step 1 Draw and label a number line.
Make a Line Plot
Step 2 Place as many Xs above each number as
there are responses for that number.
Make a Line Plot
Step 3 Describe the data.
• 16 students responded to the question.
• No one owns more than 5 pets.
• Four students do not own any pets.
• The response given most is 1 pet owned.
This represents the mode.
Answer: So, 16 students were surveyed. More
people owned 1 pet than any other number.
Which statement best
describes the data shown?
A. The most number of
siblings students have are 4.
B. 14 students were surveyed.
Most people have 2 siblings.
0%
A
B
C
D
0%
0%
D
A
0%
B
D. No students have siblings.
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2.
3.
4.
C
C. 14 students were surveyed.
More people had 3 siblings
than 0 siblings.
Analyze Line Plots
The line plot shows the prices of sneakers in
one store. Find the median and the mode of the
data. Then describe the data using them.
Analyze Line Plots
There are 22 numbers represented in the line plot.
The two middle numbers, shown on the line plot, are
$45 and $45. So, the median is $45. This means that
half of the sneakers cost more than $45 and half cost
less than $45.
The number that appears most often is $40. So, the
mode of the data is $40. This means that more
sneakers cost $40 than any other price.
Analyze Line Plots
Answer: So, the median is $45 and the mode is $40.
Half of the sneakers cost less than or equal
to $45 and more sneakers cost $40 than
any other price.
What is the median and
mode of the data?
A. median 45; mode 45
B. median 40; mode 45
C. median 35; mode 40
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2.
3.
4.
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D
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C
A
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B
D. median 60; mode 70
A
B
C
D
Analyze Line Plots
Find the range and any outliers of the data.
Then describe the data using them.
Analyze Line Plots
range = greatest value – least value
= $70 – $35, or $35
Answer: So, the range of the prices is $35. The price
$70 is much higher than the rest of the prices.
So, $70 is an outlier.
What is the range and any
outliers of the data?
A. range 35; outlier 35
B. range 35; no outliers
0%
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A
B
C
D
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D
A
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B
D. range 35; outlier 70
1.
2.
3.
4.
C
C. range 35; outlier 45
End of the Lesson
Five-Minute Check (over Lesson 7–2)
Image Bank
Math Tool Chest
Use an Appropriate Graph
(over Lesson 7–2)
Use any problem-solving strategy to solve. Four
teams played in a soccer tournament. The red team
placed ahead of the blue team and behind the green
team. The yellow team placed ahead of the blue
team and behind the red team. Who placed first in
the tournament?
A. blue team
D. yellow team
A
0%
0%
0%
0%
D
C. red team
B
B. green team
A
B
C
D
C
1.
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3.
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