This document discusses joint bar graphs. It provides an example of a joint bar graph showing the number of trees planted by three schools in two years. It asks three questions about the graph and provides the answers. It then evaluates what a graph and joint bar graph are and how joint bar graphs are drawn. Finally, it provides another example joint bar graph and asks three questions about it.

2. 5
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2.5
2
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Category 1 Category 2 Category 3
Series 1
Series 2

3. “A joint bar
graphs is a set of
bar graphs
showing
different sets of
information but
joined to each
other.”
5 Series 2
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3.5
3
2.5
2
1.5
1
0.5
0
Series 3

4. Example:
The number of trees planted by
children of three students in
Babhulgoan in the years 2006-07
and 2007-08 is shown in the joint
bar graph below.

5. 1)Which school planted the same
number of trees every year?
2)Which school planted more trees
in 2007-08 than in 2006-07?
3)Which school planted more trees
in 2006-07 than in 2007-08?

6. A JOINT BAR GRAPH plotted
80
60
40
20
0
100
School No.
1
School No.
2
School No.
3
2006-07
2007-08

7. 1. Which school planted the same number of
trees every year?
100
90
80
70
60
50
40
30
20
10
0
School
No. 1
School
No. 2
School
No. 3
2006-07
2007-08
Ans:
School no. 3.

8. 2. Which school planted more trees in 2007-08 than
in 2006-07?
2006-07
100
80
60
40
20
0
School
No. 1
School
No. 2
School
No. 3
2006-07
2007-08
Ans:
School no. 2.

9. 3. Which school planted more trees in 2006-07 than
in 2007-08?
100
80
60
40
20
0
School
No. 1
School
No. 2
School
No. 3
2006-07
2007-08
Ans:
School no. 1.

10. Evaluation:
What is a graph?
What is a joint bar graph?
How is the joint bar graphs drawn?

11. Application:
The joint bar graph below shows the number of men and women
under the Employment Guarantee Scheme (EGS) in the three
villages P,Q,R.
180
160
140
120
100
80
60
40
20
0
P Q R
Men
Women
I. How many people in
village R are getting
the benefits of the
EGS?
II. Which village has
the most women
beneficiaries?
III. Does village P have
more men or
women
beneficiaries?

12. Home Work:
 Solve Exercise 83
from the text book
page no. 149.