EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Data Handling
Grade : CBSE Grade VII
License : Non Commercial Use
Question
1
1.
Heights of 11 students are given below. Find the mode.
Height (in cm)
129
133
140
142
149
164
No. of students
1
4
2
2
1
1
(i)
131
cm
(ii)
132
cm
(iii)
134
cm
(iv)
135
cm
(v)
133
cm
Question
2
2.
Heights of 11 plants are given below. Find the mode.
Height (in cm)
51
54
61
81
97
98
No. of plants
2
1
4
1
1
2
(i)
60
cm
(ii)
62
cm
(iii)
59
cm
(iv)
63
cm
(v)
61
cm
Question
3
3.
Wages of 31 labourers are given below. Find the mode.
Wage (in rupees)
306
315
398
412
418
423
431
456
482
No. of labourers
3
8
4
2
5
2
2
3
2
(i)
₹
314.00
(ii)
₹
316.00
(iii)
₹
315.00
(iv)
₹
313.00
(v)
₹
317.00
Question
4
4.
There are certain creatures in a zoo. Find the type of creature that has maximum presense in the zoo.
(i)
Beast animals
(ii)
Reptiles
(iii)
Birds
(iv)
Land animals
(v)
Wild animals
Question
5
5.
Given the bar graph, find the maximum frequency
(i)
85
(ii)
90
(iii)
95
(iv)
100
(v)
80
Question
6
6.
Find the mean of the first 10 odd numbers.
(i)
13
(ii)
9
(iii)
11
(iv)
7
(v)
10
Question
7
7.
Arrange the following data
38
37
19
26
13
34
28
12
19
32
in ascending order
(i)
12
13
19
19
26
28
32
34
37
38
(ii)
22
35
22
23
32
16
15
39
21
24
(iii)
15
11
18
29
30
19
27
29
28
19
(iv)
40
37
37
10
35
24
16
27
35
17
(v)
39
27
14
26
20
36
24
25
18
34
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)
7 a.m.
(ii)
11 a.m.
(iii)
5 p.m.
(iv)
1 p.m.
(v)
3 p.m.
Question
9
9.
Scores of 11 students are given below. Find the mode.
Score
76
77
78
80
81
82
85
No. of students
1
1
3
1
1
2
2
(i)
76
(ii)
80
(iii)
77
(iv)
78
(v)
79
Question
10
10.
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
mangoes
peaches
oranges
guavas
apples
Monday
63
34
36
18
54
Tuesday
54
71
27
36
45
(ii)
Fruits
mangoes
peaches
oranges
guavas
apples
Monday
63
27
36
25
54
Tuesday
54
63
27
36
45
(iii)
Fruits
mangoes
peaches
oranges
guavas
apples
Monday
63
27
36
18
54
Tuesday
54
63
27
36
45
(iv)
Fruits
mangoes
peaches
oranges
guavas
apples
Monday
54
63
34
36
45
Tuesday
63
27
30
18
54
(v)
Fruits
mangoes
peaches
oranges
guavas
apples
Monday
63
27
36
18
54
Tuesday
54
63
27
36
52
Question
11
11.
Heights of 16 plants (in cm) are given below. Find the mode height.
72
66
76
83
62
74
52
100
99
98
82
55
78
55
53
55
(i)
57
cm
(ii)
53
cm
(iii)
54
cm
(iv)
55
cm
(v)
56
cm
Question
12
12.
There are certain creatures in a zoo. Find the type of creature that has 484 creatures presense in the zoo.
(i)
Reptiles
(ii)
Domestic animals
(iii)
Water animals
(iv)
Beast animals
(v)
Birds
Question
13
13.
Scores of 11 students are given below. Find the mean score.
70
83
84
79
80
83
88
89
78
86
78
(i)
909
11
(ii)
900
11
(iii)
920
11
(iv)
899
11
(v)
898
11
Question
14
14.
Ages of 13 students (in years) are given below. Find the mean age.
10
15
14
14
10
11
15
11
10
11
11
10
14
(i)
14
years
(ii)
11
years
(iii)
12
years
(iv)
10
years
(v)
13
years
Question
15
15.
Two unbiased coins are tossed simultaneously. Find the probability of getting at most one head.
(i)
4
5
(ii)
1
4
(iii)
3
4
(iv)
1
2
(v)
1
Question
16
16.
Weights of 12 students (in kg) are given below. Find the mean weight.
56
49
60
57
40
52
41
44
48
53
60
49
(i)
205
4
kg
(ii)
203
4
kg
(iii)
211
4
kg
(iv)
51
kg
(v)
207
4
kg
Question
17
17.
A coin is tossed 70 times and tail appears 25 times. If the coin is tossed again, what is the probability of getting a head?
(i)
4
7
(ii)
5
7
(iii)
2
3
(iv)
9
14
(v)
5
14
Question
18
18.
The number of children in 18 families are given below. Identify the frequency distribution table for the given data.
3
4
2
2
1
2
2
1
1
4
3
0
2
3
5
4
3
3
(i)
No. of children
0
1
2
3
4
5
No. of families
3
4
1
3
3
4
(ii)
No. of children
0
1
2
3
4
5
No. of families
3
2
3
2
4
4
(iii)
No. of children
0
1
2
3
4
5
No. of families
1
3
4
5
4
1
(iv)
No. of children
0
1
2
3
4
5
No. of families
1
3
5
5
3
1
Question
19
19.
Read the given column-graph. Find the month that has minimum rainfall.
(i)
October
(ii)
June
(iii)
November
(iv)
July
(v)
August
Question
20
20.
Arrange the following data
19
25
29
19
23
32
19
28
37
15
in descending order
(i)
27
35
30
35
14
38
30
11
27
23
(ii)
35
27
32
11
30
32
27
37
35
14
(iii)
39
30
13
27
36
15
34
15
36
14
(iv)
40
16
24
28
13
33
19
26
31
35
(v)
37
32
29
28
25
23
19
19
19
15
Question
21
21.
The number of bars present in the bar chart of the following table is
(i)
4
(ii)
5
(iii)
8
(iv)
3
(v)
6
Question
22
22.
1845 students of a school use different modes of travel to school. Identify the table for the given bar diagram.
(i)
Mode of travel
School Bus
Moped
School Van
Scooter
Car
By Foot
RTC Bus
No. of students
315
414
189
441
108
99
279
(ii)
Mode of travel
School Bus
Moped
School Van
Scooter
Car
By Foot
RTC Bus
No. of students
99
189
279
315
441
414
108
(iii)
Mode of travel
School Bus
Moped
School Van
Scooter
Car
By Foot
RTC Bus
No. of students
279
315
414
189
441
99
108
(iv)
Mode of travel
School Bus
Moped
School Van
Scooter
Car
By Foot
RTC Bus
No. of students
441
108
315
189
414
279
99
(v)
Mode of travel
School Bus
Moped
School Van
Scooter
Car
By Foot
RTC Bus
No. of students
441
99
414
189
108
279
315
Question
23
23.
Read the column-graph given below. Find the year that has minimum food grains production.
(i)
2007
(ii)
2011
(iii)
2010
(iv)
2009
(v)
2008
Question
24
24.
Find the median of the first 15 odd numbers.
(i)
13
(ii)
15
(iii)
18
(iv)
14
(v)
16
Question
25
25.
Three unbiased coins are tossed simultaneously. Find the probability of getting exactly one head.
(i)
4
9
(ii)
1
4
(iii)
5
8
(iv)
1
2
(v)
3
8
Assignment Key
1) (v)
2) (v)
3) (iii)
4) (iii)
5) (i)
6) (v)
7) (i)
8) (i)
9) (iv)
10) (iii)
11) (iv)
12) (v)
13) (v)
14) (iii)
15) (iii)
16) (ii)
17) (iv)
18) (iv)
19) (ii)
20) (v)
21) (ii)
22) (iii)
23) (i)
24) (ii)
25) (v)
