This document describes different types of graphs: - Bar graphs, pictographs, line graphs, double line graphs, circle graphs, double bar graphs, line plots, histograms, and scatter plots. - Each graph type has a specific purpose and structure. For example, bar graphs compare data using bars, line graphs show change over time with connected points, and scatter plots show the relationship between two variables. - Key elements are described for each graph, such as titles, labeled axes, equal intervals, data points, and keys for additional information.

1. Graphs
0
20
40
60
80
100
Percentage
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
Quarters
Grades on Graphing Tests
Barnhart Kids
Other Kids
Class A
Class B

2. Pictograph
More Info
Fireflies

3. Bar Graph
Favorite Subjects
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30
40
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60
70
Math Science Reading Social Studies
Subjects
Number
of
Students
More Info

4. Double Bar Graph
Plant Growth
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5
10
15
20
Week 1 Week 2 Week 3 Week 4
Weeks
Inches
Light
Dark
More Info

5. Histogram
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9
8
7
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5
4
3
2
1
10-Jan 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 90-99
Frequency
Test Scores
Class Test Scores
More Info

6. Line Graph
Temperature For One Week
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10
20
30
40
50
60
70
80
90
100
Day 1 Day 2 Day 3 Day 4 Day 5
Days of the Week
Degrees
Farenheit
More Info

7. Double Line Graph
Amount of Rainfall
0
1
2
3
4
5
May June July August
Months
Inches
1999
2000
More Info

8. Circle Graph
Eye Color
40%
32%
20%
8%
Brown
Blue
Green
Other
More Info

9. Line Plot
Favorite Colors
X
X
X X X
X X X X
X X X X X
X X X X X
Red Blue Green Yellow Purple
More Info

10. Scatter Plot
Study Time Versus Grades
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80
100
1 2 3 4
Study Time in Hours
Grade
*
*
* *
* * *
5
More Info

11. Bar Graph
 The purpose of a bar
graph is to display and
compare data.
 Bar graphs use bars to
show the data.
 A bar graph must
include:
- a title
- labeled X and Y axes
- equal intervals are
used on the Y axis
- the bars are evenly
spaced apart from
each other
Return to Graph

12. Pictograph
 All pictographs have a
title.
 Rows and columns
shape the pictograph.
 Label each row and
column.
 Use pictures to show
the data.
 Each picture equals a
certain amount of
data.
 Pictographs need a
key.
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13. Line Graph
 A line graph is used to
illustrate change over
time.
 Line graphs need:
- Title
- Labeled X and Y axes
- Equal Intervals
- Data displayed by
points connected into
lines
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14. Double Line Graph
 A double line graph is
used to compare two
groups of related data
over time.
 Double line graphs
need:
- Title
- Labeled X and Y axes
- Equal Intervals
- Data displayed by
points connected into
lines
- Key
Return to Graph

15. Circle Graph
 Circle graphs are
used to display parts
of the data in relation
to the entire amount
of data.
 All circle graphs need
a title.
 Each part is called a
sector and is labeled.
 All angles correct
(+2/-2 degrees)
Return to Graph

16. Double Bar Graph
 The purpose of a
double bar graph is to
compare two or more
sets of data.
 Uses bars to show the
data.
 Double bar graphs
must include:
- Title
- Labeled X and Y axes
- Equal intervals are
used on the Y axis
- Pairs of bars are
equally spaced, but
the compared bars
are not
- Key
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17. Line Plot
 A line plot shows the spread of all the data
on a number line.
 Easily identifies the mode.
 All line plots include:
- a title
- a numbered horizontal line
- data displayed by use of X’s
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18. Histogram
 Histograms are used
to show the frequency
of data.
 Very similar to bar
graphs, but use
intervals on the X axis.
 Bars do touch.
 Histograms have a
title.
 Histograms have two
axes which are
labeled.
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19. Scatter Plot
 Shows how closely
two sets of data are
related
 The closer the sets
are related, the closer
the points come to
forming a straight
line.
 Scatter Plots include:
- title
- labeled axes
- equal intervals
- corresponding
numbers plotted as
ordered pairs
Return to Graph