FRANK Solutions for Class 9 Maths Chapter 23 - Graphical Representation of Statistical Data

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	IX-A	IX-B	IX-C	IX-D	IX-E
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

1. 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.

2. Punjab is the largest producer of wheat.

3. U.P. is the largest producer of sugar.

4. U.P. has total production of wheat and sugar as its maximum.

5. W.B. has the total production of wheat and sugar minimum.