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How to set up a bar graph…
Learning Goal: Use line and bar
graphs to organize information.
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TAILS
T - Title
Teachers’s Favorite Singer
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TAILS
T - Title
Teachers’s Favorite Singer
Y Axis =
Dependent
Variable
X Axis =
Independent
Variable
A - Axis
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TAILS
T - Title
A – Axis
S – Scale
Teachers’s Favorite Singer
Decide on an appropriate
scale for each axis.
Choose a scale that lets you
make the graph as large as
possible for your paper and
data
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How to determine scale
• Scale is determined
by your highest &
lowest number.
• In this case your
scale would be from
2 – 22.
Favorite
Singer
Number of
Teachers
Bon Jovi 22
Metallica 15
Pitbull 11
Miley Cyrus 5
Taylor Swift 2
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How to determine scale
• The interval is decided
by your scale.
• In this case your scale
would be from 2 – 22 and
you want the scale to fit
the graph.
• The best interval would
be to go by 5’s.
Favorite
Singer
Number of
Teachers
Bon Jovi 22
Metallica 15
Pitbull 11
Miley Cyrus 5
Taylor Swift 2
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TAILS
T – Title
A – Axis
I – Interval
S – Scale
Teachers’s Favorite Singer
The amount of space between one
number and the next or one type of
data and the next on the graph.
The interval is just as important as
the scale
Choose an interval that lets you
make the graph as large as possible
for your paper and data
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TAILS
T – Title
A – Axis
I – Interval
S – Scale
Teachers’s Favorite Singer
0
5
10
15
20
25
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TAILS
T – Title
A – Axis
I – Interval
L – Labels
S – Scale
Teachers’s Favorite Singer
0
5
10
15
20
25
BonJovi
Metallica
Pitbull
MileyCyrus
TaylorSwift
LABEL your bars or
data points
Singers
NumberofTeachers
Label your X &Y Axes.
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When to use…
• Bar graphs
– Used to show data that are not continuous.
– Allows us to compare data like amounts or
frequency or categories
– Allow us to make generalizations about the data
– Help us see differences in data
• Line Graphs
– For continuous data
– useful for showing trends over time
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Estimated Population
Let’s Practice … Line Graphs
Year World
Populations
(millions)
1650 500
1700 600
1750 700
1800 900
1850 1300
1900 1700
1950 2500
200 7000
Year
1650
1700
1750
1800
1850
1900
1950
2000
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Learning Goal: Use line and bar
graphs to organize information.
Time to Self-Assess
5 – Mastered it!
4 – Own it!
3 – Getting there!
2 – Confused!
1 – No clue!