EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Data Handling
Grade : CBSE Grade VII
License : Non Commercial Use
Question
1
1.
A single unbiased coin is tossed. Find the probability of getting a head.
(i)
1
2
(ii)
3
4
(iii)
5
6
(iv)
2
3
(v)
4
5
Question
2
2.
Read the given column-graph. Find the month that has minimum rainfall.
(i)
September
(ii)
July
(iii)
June
(iv)
November
(v)
August
Question
3
3.
The marks obtained by Karthik in his annual exam are shown below. Find the subject that has maximum score.
(i)
Biology
(ii)
English
(iii)
Hindi
(iv)
Telugu
(v)
Science
Question
4
4.
The following bar graph gives data regarding the favourite sport of 999 students of a school. Identify the table for the given bar diagram.
(i)
Sport
kabaddi
cricket
long jump
tennis
hockey
No. of Boys
54
91
144
171
45
No. of Girls
54
107
171
117
45
(ii)
Sport
kabaddi
cricket
long jump
tennis
hockey
No. of Boys
54
99
144
171
45
No. of Girls
54
99
171
117
52
(iii)
Sport
kabaddi
cricket
long jump
tennis
hockey
No. of Boys
54
99
144
178
45
No. of Girls
54
99
171
117
45
(iv)
Sport
kabaddi
cricket
long jump
tennis
hockey
No. of Boys
54
99
144
171
45
No. of Girls
54
99
171
117
45
(v)
Sport
kabaddi
cricket
long jump
tennis
hockey
No. of Boys
54
99
165
117
45
No. of Girls
54
99
138
171
45
Question
5
5.
On a particular day, at a crossing in a city, the various types of 185 vehicles going past during a time-interval were observed as under:
Type of Vehicle
Four-wheeler
Three-wheeler
Two-wheeler
Frequency
55
60
70
Out of these vehicles, if one is choosen at random, what is the probability that the choosen vehicle is a 'Three-wheeler' ?
(i)
25
37
(ii)
11
37
(iii)
13
38
(iv)
13
37
(v)
12
37
Question
6
6.
Heights of 13 plants (in cm) are given below. Find the median height.
77
52
73
55
67
51
66
56
90
86
96
75
63
(i)
65
cm
(ii)
66
cm
(iii)
67
cm
(iv)
68
cm
(v)
69
cm
Question
7
7.
Following bar graph gives the average temperature of a place during a week. Find the day that has maximum temperature.
(i)
Thurs.
(ii)
Sat.
(iii)
Wed.
(iv)
Fri.
(v)
Tues.
Question
8
8.
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)
Bicycle
(ii)
Scooter
(iii)
School Van
(iv)
Car
(v)
RTC Bus
Question
9
9.
Read the given column-graph. Find the month that has 14 cm rainfall.
(i)
September
(ii)
June
(iii)
July
(iv)
November
(v)
August
Question
10
10.
Scores of 14 students are given below. Find the mode score.
85
87
74
86
72
80
89
70
74
75
90
81
86
74
(i)
75
(ii)
72
(iii)
76
(iv)
73
(v)
74
Question
11
11.
The following bar graph gives data regarding the favourite sport of 567 students of a school. Identify the table for the given bar diagram.
(i)
Sport
high jump
hockey
chess
basketball
wrestling
badminton
No. of students
36
27
90
108
126
180
(ii)
Sport
high jump
hockey
chess
basketball
wrestling
badminton
No. of students
108
90
180
36
27
126
(iii)
Sport
high jump
hockey
chess
basketball
wrestling
badminton
No. of students
108
36
90
126
180
27
(iv)
Sport
high jump
hockey
chess
basketball
wrestling
badminton
No. of students
180
90
126
108
27
36
(v)
Sport
high jump
hockey
chess
basketball
wrestling
badminton
No. of students
126
36
90
180
108
27
Question
12
12.
The following bar graph shows the export earnings of a country (in thousand crore) during five years. Find the year that has 100 thousand crore export earnings.
(i)
2009-10
(ii)
2007-08
(iii)
2010-11
(iv)
2006-07
(v)
2008-09
Question
13
13.
Find the mean of first 6 multiples of 4.
(i)
13
(ii)
14
(iii)
15
(iv)
12
(v)
17
Question
14
14.
Read the column-graph given below. Find the year that has maximum food grains production.
(i)
2009
(ii)
2010
(iii)
2011
(iv)
2007
(v)
2008
Question
15
15.
Read the column-graph given below. Find the year that has 88 million tonnes food grains production.
(i)
2011
(ii)
2007
(iii)
2010
(iv)
2008
(v)
2009
Question
16
16.
Read the given column-graph. Find the month that has maximum rainfall.
(i)
September
(ii)
June
(iii)
October
(iv)
August
(v)
July
Question
17
17.
Weights of 15 students (in kg) are given below. Find the mode weight.
56
57
55
42
54
58
40
42
54
43
49
52
54
40
54
(i)
55
kg
(ii)
52
kg
(iii)
53
kg
(iv)
54
kg
(v)
56
kg
Question
18
18.
Rainfall of 16 days are given below. Find the mode.
Rainfall (in mm)
5
7
8
9
10
12
13
14
No. of days
1
2
1
4
2
2
2
2
(i)
8
mm
(ii)
10
mm
(iii)
7
mm
(iv)
11
mm
(v)
9
mm
Question
19
19.
Heights of 10 students (in cm) are given below. Find the median height.
126
129
148
175
157
127
171
133
138
173
(i)
145
cm
(ii)
144
cm
(iii)
143
cm
(iv)
142
cm
(v)
141
cm
Question
20
20.
Ages of 11 students (in years) are given below. Find the mean age.
12
11
12
13
12
13
12
10
15
10
15
(i)
136
11
years
(ii)
146
11
years
(iii)
157
11
years
(iv)
135
11
years
(v)
137
11
years
Question
21
21.
A coin is tossed 100 times and tail appears 80 times. If the coin is tossed again, what is the probability of getting a head?
(i)
1
3
(ii)
1
5
(iii)
2
5
(iv)
0
(v)
4
5
Question
22
22.
The following table shows the blood-groups of 288 students of a class.
Blood group
AB
A
B
O
Number of students
45
63
81
99
One student of the class is choosen at random. What is the probability that the choosen student has blood group 'A' ?
(i)
25
32
(ii)
7
32
(iii)
3
16
(iv)
8
33
(v)
1
4
Question
23
23.
Daily wages of 11 labourers (in ₹) are given below. Find the mode wage.
467
350
481
354
411
321
446
441
310
406
310
(i)
₹
308.00
(ii)
₹
312.00
(iii)
₹
310.00
(iv)
₹
309.00
(v)
₹
311.00
Question
24
24.
Two unbiased coins are tossed simultaneously. Find the probability of getting exactly one head.
(i)
4
5
(ii)
2
3
(iii)
1
2
(iv)
3
4
(v)
5
6
Question
25
25.
Identify the frequency distribution table for the given ages of 14 students in years
15
15
13
13
21
16
19
21
14
22
20
10
10
10
(i)
Age (in years)
10
13
14
15
16
19
20
21
22
No. of Students
3
2
1
2
1
1
1
2
1
(ii)
Age (in years)
10
13
14
15
16
19
20
21
22
No. of Students
4
2
1
2
1
1
1
1
1
(iii)
Age (in years)
10
13
15
17
18
19
25
No. of Students
3
2
2
3
1
1
2
(iv)
Age (in years)
10
13
14
15
16
19
21
22
No. of Students
3
2
2
2
1
1
2
1
(v)
Age (in years)
11
14
15
16
17
18
20
21
22
24
25
No. of Students
2
1
1
1
1
1
1
1
3
1
1
Assignment Key
1) (i)
2) (ii)
3) (i)
4) (iv)
5) (v)
6) (iii)
7) (iii)
8) (iii)
9) (i)
10) (v)
11) (iii)
12) (i)
13) (ii)
14) (ii)
15) (iii)
16) (ii)
17) (iv)
18) (v)
19) (iii)
20) (iv)
21) (ii)
22) (ii)
23) (iii)
24) (iii)
25) (i)
