EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Data Handling
Grade : CBSE Grade VII
License : Non Commercial Use
Question
1
1.
Ages of 31 students are given below. Find the mode.
Age (in years)
10
11
12
13
14
15
No. of students
8
7
4
6
5
1
(i)
10
years
(ii)
11
years
(iii)
9
years
(iv)
8
years
(v)
12
years
Question
2
2.
Heights of 31 students are given below. Find the mode.
Height (in cm)
126
131
135
136
137
150
151
152
162
163
168
No. of students
1
4
3
2
2
1
2
3
2
3
8
(i)
170
cm
(ii)
167
cm
(iii)
166
cm
(iv)
168
cm
(v)
169
cm
Question
3
3.
In a bar diagram the value represented by a rectangle is proportional to its
(i)
perimeter
(ii)
area
(iii)
length
(iv)
breadth
Question
4
4.
Following bar graph gives the average temperature of a place during a week. Find the day that has maximum temperature.
(i)
Wed.
(ii)
Mon.
(iii)
Fri.
(iv)
Sat.
(v)
Sun.
Question
5
5.
The marks obtained by 15 students in a test are given below. Find their median marks.
10
36
45
27
7
17
29
10
35
28
11
3
4
8
13
(i)
15
(ii)
10
(iii)
14
(iv)
12
(v)
13
Question
6
6.
Given below is the column-graph showing heights of some mountain peaks. Find the mountain that has minimum height.
(i)
Nanga Parbat
(ii)
Annapurna
(iii)
Kanchenjunga
(iv)
Kilimanjaro
(v)
Nanda Devi
Question
7
7.
Find the mean of first 5 whole numbers.
(i)
2
(ii)
4
(iii)
-1
(iv)
3
(v)
1
Question
8
8.
Rainfall of 13 days (in mm) are given below. Find the mode rainfall.
14
12
13
13
9
8
7
7
10
8
11
10
7
(i)
7
mm
(ii)
6
mm
(iii)
5
mm
(iv)
8
mm
(v)
9
mm
Question
9
9.
The scores obtained by 7 students in a test are given below. Find the range.
20
13
20
19
18
7
12
(i)
15
4
7
(ii)
18
(iii)
20
(iv)
7
(v)
13
Question
10
10.
The sale of shirts of various sizes at a shop on a particular day is given below. Identify the frequency distribution table for the given data.
31
36
33
29
24
30
20
37
36
26
38
23
25
31
28
35
26
24
32
30
34
(i)
Size
20
21
22
23
24
26
27
28
29
30
31
33
36
37
38
40
No. of Shirts
1
1
1
1
1
2
1
1
1
2
1
3
1
1
1
2
(ii)
Size
21
22
25
26
28
29
30
32
35
36
37
38
39
40
No. of Shirts
1
1
1
1
1
1
1
2
1
1
2
2
4
2
(iii)
Size
20
23
24
25
26
28
29
30
31
32
33
34
35
36
37
38
No. of Shirts
1
1
2
1
2
1
1
2
2
1
1
1
1
2
1
1
(iv)
Size
20
23
24
25
26
28
29
30
31
33
34
35
36
37
38
No. of Shirts
1
1
3
1
2
1
1
2
2
1
1
1
2
1
1
Question
11
11.
Students of a certain locality use different modes of travel to school as given below. Find the mode of travel that has minimum students.
(i)
School Van
(ii)
Bicycle
(iii)
School Bus
(iv)
RTC Bus
(v)
Scooter
Question
12
12.
Scores of 15 students are given below. Find the mode score.
75
75
87
81
84
89
89
74
74
89
77
71
75
84
75
(i)
76
(ii)
77
(iii)
75
(iv)
73
(v)
74
Question
13
13.
A survey of 100 men showed that only 30 of them know English. Out of these men, if one is selected at random, what is the probability that the selected man knows English?
(i)
3
10
(ii)
1
5
(iii)
7
10
(iv)
4
11
(v)
2
5
Question
14
14.
The scores obtained by 12 students in a test are given below. Find the median.
2
12
20
4
2
16
13
3
20
1
1
20
(i)
19
(ii)
9
1
2
(iii)
20
(iv)
1
(v)
8
Question
15
15.
Rainfall of 12 days (in mm) are given below. Find the median rainfall.
10
10
6
13
12
11
11
11
5
15
8
6
(i)
23
2
mm
(ii)
21
2
mm
(iii)
25
2
mm
(iv)
11
mm
Question
16
16.
The air distance of some cities from Delhi (in km) are given below. Find the city that has minimum distance.
(i)
Gandhi Nagar
(ii)
Bhopal
(iii)
Nagpur
(iv)
Kanpur
(v)
Bubhaneshwar
Question
17
17.
Find the sum of frequencies for the given table
Value
32
34
38
43
60
62
67
78
89
Frequency
1
1
1
1
2
1
1
1
1
(i)
8
(ii)
13
(iii)
10
(iv)
9
(v)
11
Question
18
18.
Given below is the column-graph showing heights of some mountain peaks. Find the mountain that has maximum height.
(i)
Kanchenjunga
(ii)
Nanda Devi
(iii)
Mount Everest
(iv)
Annapurna
(v)
Alps
Question
19
19.
Find the median of all prime numbers between 50 and 100.
(i)
73
(ii)
69
(iii)
71
(iv)
72
(v)
74
Question
20
20.
Temperatures of 10 days (in °C) are given below. Find the mean temperature.
30
34
28
26
25
26
34
32
30
27
(i)
151
5
°C
(ii)
146
5
°C
(iii)
148
5
°C
(iv)
147
5
°C
(v)
156
5
°C
Question
21
21.
The air distance of some cities from Delhi (in km) are given below. Find the city that has 1158 km distance.
(i)
Lucknow
(ii)
Bubhaneshwar
(iii)
Bangalore
(iv)
Kanpur
(v)
Kochi
Question
22
22.
Marks obtained by two students Bali and Sangeeta in diferent subjects are shown in the bar graph. Identify the table for the given bar diagram.
(i)
Subjects
English
Mathematics
Science
Physics
Bali
66
63
84
66
Sangeeta
74
66
84
55
(ii)
Subjects
English
Mathematics
Science
Physics
Bali
74
63
76
66
Sangeeta
74
66
76
55
(iii)
Subjects
English
Mathematics
Science
Physics
Bali
74
66
84
61
Sangeeta
74
63
84
72
(iv)
Subjects
English
Mathematics
Science
Physics
Bali
74
63
84
66
Sangeeta
74
73
84
55
(v)
Subjects
English
Mathematics
Science
Physics
Bali
74
63
84
66
Sangeeta
74
66
84
55
Question
23
23.
Find the mean of first 8 multiples of 17.
(i)
151
2
(ii)
155
2
(iii)
153
2
(iv)
305
4
(v)
77
Question
24
24.
A die is thrown 90 times. Prime numbers appeared on the upper face 35 times. If a die is thrown at random, what is the probability of getting a prime number?
(i)
4
9
(ii)
8
19
(iii)
11
18
(iv)
7
18
(v)
1
3
Question
25
25.
On a particular day, at a crossing in a city, the various types of 95 vehicles going past during a time-interval were observed as under:
Type of Vehicle
Two-wheeler
Four-wheeler
Three-wheeler
Frequency
25
30
40
Out of these vehicles, if one is choosen at random, what is the probability that the choosen vehicle is a 'Four-wheeler' ?
(i)
7
20
(ii)
13
19
(iii)
7
19
(iv)
6
19
(v)
5
19
Assignment Key
1) (i)
2) (iv)
3) (iii)
4) (iii)
5) (v)
6) (i)
7) (i)
8) (i)
9) (v)
10) (iii)
11) (iv)
12) (iii)
13) (i)
14) (v)
15) (ii)
16) (iv)
17) (iii)
18) (i)
19) (iv)
20) (ii)
21) (iv)
22) (v)
23) (iii)
24) (iv)
25) (iv)