Data Handling Class 7 Worksheet 1 with Answers
1.
Choose the correct answer in each of the
following.
a.
The graphical representation of data using a circle is called a
i. bar graph
ii. pie chart
iii. line graph
iv. pictograph
b.
The arrangement of numerical data in ascending or descending order is called
i. line graph
ii. frequency
iii. arranged data
iv. none of these
2.
Fill in the blanks to make the statements true.
a.
The average of a set of numbers is termed as ___________.
b.
Data graphically represented using pictures is known as the ___________.
c.
Data graphically represented using bars is known as the ___________.
d.
Bars are of the same ___________ and the distance between any two successive
bars is the ___________.
3.
Arrange each of the following data as an array
and find the range.
a.
35, 18, 38, 74, 43, 12, 8, 70, 63, 72, 57
b.
18, 125, 16, 3, 92, 36, 45, 113, 78, 52, 45, 58, 46, 28, 108
4.
Arrange each of the following data as an array
and find the mean.
a.
43, 15, 18, 24, 23, 19, 28, 23, 21, 49, 23, 44, 28, 18, 32
b. 42, 46, 38,
44, 32, 53, 38, 40, 56, 48, 49, 36
5.
Make a frequency table for the following data
and hence calculate the mean:
4, 6, 5, 1, 3, 4, 2, 3, 3, 2, 1, 6, 4, 5,
5, 1, 1, 3, 2, 5, 2, 5, 3, 3, 4, 1, 4, 3, 3, 2
6. The sales of XYZ store during the first six
months are given below.
Months 
January 
February 
March 
April 
May 
June 
Sales (in lakhs Rs) 
7 
6 
5 
7 
8 
4 
Represent
the data using
a.
a bar graph
b.
a line graph
7. The following table shows the monthly expenses
of a family.
Item 
Food 
Clothing 
Rent 
Education 
Miscellaneous 
Savings 
Total 
Expenses (in Rs) 
9000 
5000 
6000 
5000 
1000 
4000 
30000 
Draw
a pie chart to represent the given data.
8. The following table shows the central angle of a pie chart. Taking total number of students as 100, fill in the table as shown representing the percentage of students obtaining the various grades.
Centrals angels 
Percentage of
students 

Grade A 
90° 
90°/360° × 100
= 
Grade B 
180° 

Grade C 
60° 

Grade D 
30° 

Total 
360° 
100 % 
Data Handling Class 7 Worksheet 2 with Answers
1.
Choose the correct answer in each of the
following.
a.
The collection of information in the form of numerical figures is called
i. data
ii. array
iii. observation
iv. pie
b. The difference between the highest
and the lowest value of observations in a data is called the
i. frequency
ii. range
iii. data
iv.
mean
c.
The number of times a particular observation occurs in a set of data is called
the
i. range
ii. class interval
iii. frequency
iv. data
2.
Fill in the blanks to make the statements true.
a. A graph drawn by plotting points
and joining the points by means of a straight line is known as the ___________
graph.
b. The mean of scores 6, 12, 15, 14,
12, 8, 3, 4, 7, 8 obtained by 10 students in a particular test is ___________.
3. Arrange the following marks obtained by 10 students in a test in
ascending order and find their mean: 50, 68, 54, 48, 72, 56, 60, 74, 53, 43
4. Draw a bar graph for the following data
representing the daily wages of 60 workers.
Wages (per day) 
70 
80 
90 
100 
110 
120 
Numbers of workers 
6 
9 
8 
15 
10 
12 
5. The following data shows the various newspapers
bought by a certain group of people.
Newspaper 
A 
B 
C 
D 
E 
Numbers of people 
40 
60 
120 
100 
80 
Represent
this data using a pie chart.
6. The following data shows the consumption of
electricity by a family in six consecutive months. Represent the data by using
a line graph.
Months 
Jan 
Feb 
Mar 
Apr 
May 
June 
Numbers of
units consumed 
160 
200 
220 
320 
380 
420 
7. The average temperature of six consecutive
weeks of a city is given below.
Weeks 
1 
2 
3 
4 
5 
6 
Temperature (in
°C) 
23 
25 
26 
24 
22 
23 
Represent
the above data by
a.
a line graph
b.
a bar graph
8.
Find the range and the mean for the following
data:
18,
45, 12, 18, 20, 15, 25, 38, 40, 15, 48, 20, 12, 34, 24
9. The following data shows the number of members staying in each
flat of a housing complex consisting of 40 flats.
3 2 5
1 2 5 4 1 2
4
4 3 5 4 4 4 5 2 4 2
3 2 2 3 2 3 2 6 3 4
6 4 4
4 4 2
4 5 6
3
Make a frequency distribution table using
tally marks and represent the data using a bar graph. Also, calculate the mean.
10. Using the given bar graph, form a frequency
distribution table showing the various books kept in a particular school
library.
Answer the following questions.
a. The books of which subject are
maximum in number?
b. The books of which subject are
minimum in number?
c. How many English books are there?
d. How many Hindi books are there?
ANSWERS
Worksheet 1
1. a. ii b. iii
2. a.
mean b. pictograph
c. bar graph
d. width; same
3.
a. 8, 12, 18, 35, 38, 43, 57, 63, 70, 72, 74
Range = 66
b. 3, 16, 18, 28, 36, 45, 45, 46, 52, 58, 78,
92, 108, 113, 125
Range = 122
4.
a. 15, 18, 18, 19, 21, 23, 23, 23, 24, 28, 28, 32, 43, 44, 49
Mean = 27.2
b. 32, 36, 38, 38, 40, 42, 44, 46, 48, 49, 53,
56
Mean = 43.5
5. Mean = 3.2
6. Do it yourself
7. Do it yourself
8.
Result 
Centrals
angels 
Percentage
of students 
Grade A 
90° 
90°/360° × 100
= 25% 
Grade B 
180° 
180°/360° × 100
= 50 
Grade C 
60° 
60°/360° × 100
= 16.67% 
Grade D 
30° 
30°/360° × 100
= 8.33% 
Total 
360° 
100 % 
Worksheet 2
1. a. i b. ii
c. iii
2. a. line b. 8.9
3. 43, 48, 50, 53,
54, 56, 60, 68, 72, 74
Mean = 57.8
4. Do it yourself
5. Do it yourself
6. Do it yourself
7. Do it yourself
8. Range = 36;
Mean = 25.6
9. Mean = 3.45
10. a. Maths
b. General Awareness
c. 550 d. 300
MCQs Questions for Class 7 Maths
Maths Worksheets for Other Chapters of Class 7 
1. Integers questions for class 7
2. HCF and LCM questions for class 7
3. Fraction questions for class 7
4. Decimals class 7 worksheets
5. Exponents and powers class 7 worksheet
6. Rational numbers class 7 worksheet
7. Algebraic expressions worksheet for class 7
8. Linear equations class 7 worksheet
9. Ratio and proportion class 7 worksheet
10. Percentage worksheet for class 7
11. Profit and loss class 7 worksheet
12. Simple interest worksheet for class 7
13. Lines and angles class 7 worksheets
14. Triangle and its properties class 7 worksheets
15. Congruence of triangles class 7 worksheets
16. Symmetry worksheet for class 7
17. Constructions worksheet for class 7
18. Perimeter and area class 7 worksheets
Some Extra Worksheets for ICSE Maths Class 7
1. Sets Class 7 ICSE Worksheets
Maths Worksheets for Other Classes 