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Category 1 Category 2 Category 3

Series 1

Series 2

“A joint bar graphs is a set of bar graphs showing different sets of information but joined to each other.”

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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.

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?

A JOINT BAR GRAPH plotted

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School No.1

School No.2

School No.3

2006-07

2007-08

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SchoolNo. 1

SchoolNo. 2

SchoolNo. 3

2006-07

2007-08

1. Which school planted the same number of trees every year?

Ans:School no. 3.

2006-070

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SchoolNo. 1

SchoolNo. 2

SchoolNo. 3

2006-07

2007-08

2. Which school planted more trees in 2007-08 than in 2006-07?

Ans:School no. 2.

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SchoolNo. 1

SchoolNo. 2

SchoolNo. 3

2006-07

2007-08

3. Which school planted more trees in 2006-07 than in 2007-08?

Ans: School no. 1.

Evaluation:What is a graph?

What is a joint bar graph?

How is the joint bar graphs drawn?

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.

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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?

Home Work:

Solve Exercise 83

from the text book

page no. 149.