FRANK Solutions for Class 9 Maths Chapter 23  Graphical Representation of Statistical Data
Chapter 23  Graphical Representation of Statistical Data Exercise Ex. 23.1
Question 1
Harmeet earns Rs.50 000 per
month. He a budget for his salary as per the following table:
Expenses

Accommodation

Food

Clothing

Travel

Miscellaneous

savings

Amount (Rs.)

12000

9000

2500

7500

4000

15000

Draw
a bar graph for the above data.
Solution 1
The bar graph is as follows:
Question 2
The
birth rate thousand of the following states over a certain period is given
below:
States

Punjab

Haryana

U.P.

Gujarat

Rajasthan

Jammu and kashmir

Birth Rate (per thousand )

22.9

21.8

19.5

21.1

23.9

18.3

Draw
a bar graph for the above data.
Solution 2
The bar graph is as follows:
Question 3
Fadil, a class IX student,
scored market in different subjects (each out of total 100) during his annual
examination as given below:
Subject

Maths

English

Science

Social studies

Hind

Physical education

Mark (out of 100)

75

80

77

78

67

89

Draw
horizontal bar graph for the above data.
Solution 3
The horizontal bar graph is as follows:
Question 4
The
number of students in different sections of class IX of a certain school is
given in the following table.
Section

IXA

IXB

IXC

IXD

IXE

Number of students

48

40

50

45

38

Draw
horizontal bar graph for the above data.
Solution 4
The horizontal bar graph is as follows:
Question 5
The
number of students (boys and girls) of class IX participating in different
activities during their annual day function is given below:
Activities

Dance

Speech

Singing

Quiz

Drama

Anchoring

Boys

12

5

4

4

10

2

Girls

10

8

6

3

9

1

Draw
a double bar graph for the above data.
Solution 5
The double bar graph is as follows:
Question 6
Solution 6
Question 7
Solution 7
Question 8
Solution 8
Question 9
Draw
a histogram for the following cumulative frequency table:
Marks

Less than 10

Less than 20

Less than 30

Less than 40

Less than 50

Less than 60

Number of student

7

18

30

45

55

60

Solution 9
Marks

0  10

10  20

20  30

30  40

40  50

50  60

Number of students

7

11

12

15

10

5

The histogram is as follows:
Question 10
Solution 10
Question 11
Solution 11
Question 12
Solution 12
Question 13
Solution 13
Question 14
Solution 14
14
Question 15
Solution 15
Question 16
Read
the following bar graph and answer the following questions:
a. What information is given by the
graph?
b. Which state is the largest
producer of wheat?
c. Which state is the largest
producer of sugar?
d. Which state has total production
of wheat and sugar as its maximum?
e. Which state has the total
production of wheat and sugar minimum?
Solution 16
 The information about Production of wheat and sugar (in million tons) in five different states (U.P., Bihar, W.B., M.P., Punjab) is given in the graph.
 Punjab is the largest producer of wheat.
 U.P. is the largest producer of sugar.
 U.P. has total production of wheat and sugar as its maximum.
 W.B. has the total production of wheat and sugar minimum.
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