EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Data Handling
Grade : CBSE Grade VII
License : Non Commercial Use
Question
1
1.
Find the mean of the first 15 odd numbers.
(i)
16
(ii)
15
(iii)
14
(iv)
17
(v)
13
Question
2
2.
Heights of 13 students (in cm) are given below. Find the mode height.
146
138
173
156
130
153
144
156
163
167
161
149
156
(i)
154
cm
(ii)
155
cm
(iii)
156
cm
(iv)
158
cm
(v)
157
cm
Question
3
3.
Students of a certain locality use different modes of travel to school as given below. Find the mode of travel that has maximum students.
(i)
Bicycle
(ii)
School Bus
(iii)
Scooter
(iv)
Car
(v)
Moped
Question
4
4.
Scores of 16 students are given below. Find the mode score.
86
74
88
81
82
89
78
75
78
88
80
87
83
74
81
74
(i)
76
(ii)
73
(iii)
72
(iv)
74
(v)
75
Question
5
5.
Find the mean of all prime numbers between 30 and 80.
(i)
441
8
(ii)
111
2
(iii)
329
6
(iv)
221
4
(v)
331
6
Question
6
6.
Scores of 11 students are given below. Find the median score.
73
75
81
83
70
83
84
76
80
81
78
(i)
80
(ii)
82
(iii)
81
(iv)
78
(v)
79
Question
7
7.
Arrange the following data
18
35
28
10
37
40
32
26
30
18
in descending order
(i)
19
11
33
10
38
20
40
26
14
26
(ii)
17
19
37
28
23
19
22
33
35
14
(iii)
20
17
16
38
27
31
19
20
15
13
(iv)
40
37
35
32
30
28
26
18
18
10
(v)
29
24
36
37
33
36
30
37
19
18
Question
8
8.
On a certain day, the temperature in a city was recorded as shown below. Find the time that has maximum temperature.
(i)
3 p.m.
(ii)
5 p.m.
(iii)
9 a.m.
(iv)
1 p.m.
(v)
5 a.m.
Question
9
9.
There are certain creatures in a zoo. Find the type of creature that has minimum presense in the zoo.
(i)
Water animals
(ii)
Reptiles
(iii)
Land animals
(iv)
Domestic animals
(v)
Wild animals
Question
10
10.
Find the median of all the factors of 10.
(i)
13
4
(ii)
9
2
(iii)
7
2
(iv)
5
2
(v)
4
Question
11
11.
Population (in thousands) of men and women in a village in different years is shown in the given bar graph. Identify the table for the given bar diagram.
(i)
Population (in thousands)
2006
2007
2008
2009
2010
2011
Number of Men
27
54
36
63
45
72
Number of Women
18
36
54
72
21
45
(ii)
Population (in thousands)
2006
2007
2008
2009
2010
2011
Number of Men
18
36
46
72
27
45
Number of Women
27
54
43
63
45
72
(iii)
Population (in thousands)
2006
2007
2008
2009
2010
2011
Number of Men
27
48
36
63
45
72
Number of Women
18
29
54
72
27
45
(iv)
Population (in thousands)
2006
2007
2008
2009
2010
2011
Number of Men
27
54
36
55
45
72
Number of Women
18
36
54
72
27
45
(v)
Population (in thousands)
2006
2007
2008
2009
2010
2011
Number of Men
27
54
36
63
45
72
Number of Women
18
36
54
72
27
45
Question
12
12.
Rainfall of 11 days (in mm) are given below. Find the mode rainfall.
15
15
11
5
5
15
9
14
12
11
15
(i)
15
mm
(ii)
17
mm
(iii)
14
mm
(iv)
16
mm
(v)
13
mm
Question
13
13.
Temperatures of 15 days (in °C) are given below. Find the median temperature.
33
29
30
33
33
25
27
25
31
35
34
27
33
31
33
(i)
29
°C
(ii)
32
°C
(iii)
31
°C
(iv)
30
°C
(v)
33
°C
Question
14
14.
The following table gives the data regarding
the favourite sport of
95
students of a school.
Find number of students who like
football
.
Sport
swimming
kabaddi
football
basketball
chess
No. of Students
17
39
10
16
13
(i)
9
(ii)
10
(iii)
8
(iv)
11
(v)
12
Question
15
15.
Two unbiased coins are tossed simultaneously. Find the probability of getting at least one head.
(i)
1
(ii)
4
5
(iii)
1
4
(iv)
3
4
(v)
1
2
Question
16
16.
Find the median of the first 10 even numbers.
(i)
10
(ii)
12
(iii)
11
(iv)
8
(v)
13
Question
17
17.
Weights of 13 students (in kg) are given below. Find the mode weight.
44
60
55
48
43
59
47
53
45
49
50
48
48
(i)
47
kg
(ii)
49
kg
(iii)
50
kg
(iv)
48
kg
(v)
46
kg
Question
18
18.
Identify the frequency distribution table for the given ages of 10 students in years
10
19
12
10
19
23
18
25
13
19
(i)
Age (in years)
10
13
14
17
18
19
21
24
No. of Students
1
2
1
1
1
2
1
1
(ii)
Age (in years)
10
12
13
18
19
23
No. of Students
2
1
1
1
3
2
(iii)
Age (in years)
10
12
13
18
19
23
No. of Students
2
1
1
2
3
1
(iv)
Age (in years)
10
13
15
16
17
19
23
24
25
No. of Students
1
2
1
1
1
1
1
1
1
(v)
Age (in years)
10
12
13
18
19
23
25
No. of Students
2
1
1
1
3
1
1
Question
19
19.
Given the bar graph, find the maximum frequency
(i)
100
(ii)
90
(iii)
85
(iv)
95
(v)
105
Question
20
20.
Find the median of all prime numbers between 30 and 80.
(i)
53
(ii)
57
(iii)
55
(iv)
56
(v)
58
Question
21
21.
Given the bar graph, find the minimum frequency
(i)
20
(ii)
10
(iii)
0
(iv)
15
(v)
5
Question
22
22.
This graph gives a comparative account of sales (in Rs) of various fruits over a two-day period. Identify the table for the given bar diagram.
(i)
Fruits
cantaloupes
peaches
apples
pumpkins
oranges
Monday
27
63
18
36
45
Tuesday
54
18
27
63
45
(ii)
Fruits
cantaloupes
peaches
apples
pumpkins
oranges
Monday
27
69
18
36
45
Tuesday
54
11
27
63
45
(iii)
Fruits
cantaloupes
peaches
apples
pumpkins
oranges
Monday
54
18
21
63
45
Tuesday
27
63
25
36
45
(iv)
Fruits
cantaloupes
peaches
apples
pumpkins
oranges
Monday
27
63
18
42
45
Tuesday
54
18
27
63
45
(v)
Fruits
cantaloupes
peaches
apples
pumpkins
oranges
Monday
27
63
18
36
45
Tuesday
54
18
27
63
39
Question
23
23.
A coin is tossed 50 times and head appears 20 times. If the coin is tossed again, what is the probability of getting a tail?
(i)
2
5
(ii)
3
5
(iii)
4
5
(iv)
2
3
Question
24
24.
The following bar graph shows the export earnings of a country (in thousand crore) during five years. Find the year that has minimum export earnings.
(i)
2010-11
(ii)
2009-10
(iii)
2006-07
(iv)
2007-08
(v)
2008-09
Question
25
25.
Read the given column-graph. Find the month that has maximum rainfall.
(i)
June
(ii)
July
(iii)
October
(iv)
November
(v)
August
Assignment Key
1) (ii)
2) (iii)
3) (v)
4) (iv)
5) (v)
6) (i)
7) (iv)
8) (iii)
9) (v)
10) (iii)
11) (v)
12) (i)
13) (iii)
14) (ii)
15) (iv)
16) (iii)
17) (iv)
18) (v)
19) (ii)
20) (iv)
21) (v)
22) (i)
23) (ii)
24) (v)
25) (ii)
