EduSahara™ Assignment
Name : Mode of Grouped Data
Chapter : Statistics
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
Heights of 31 students are given below. Find the mode.
Height (in cm)
125
126
127
142
149
161
162
174
No. of students
3
3
5
2
3
2
7
6
(i)
161
cm
(ii)
164
cm
(iii)
160
cm
(iv)
163
cm
(v)
162
cm
Question
2
2.
Heights of 31 plants are given below. Find the mode.
Height (in cm)
52
63
69
71
83
87
94
No. of plants
2
4
8
3
6
3
5
(i)
69
cm
(ii)
70
cm
(iii)
68
cm
(iv)
71
cm
(v)
67
cm
Question
3
3.
Ages of 11 students are given below. Find the mode.
Age (in years)
10
11
12
13
14
No. of students
1
4
1
2
3
(i)
11
years
(ii)
13
years
(iii)
10
years
(iv)
9
years
(v)
12
years
Question
4
4.
Scores of 11 students are given below. Find the mode.
Score
74
75
79
82
86
87
88
No. of students
3
2
1
1
1
2
1
(i)
75
(ii)
72
(iii)
73
(iv)
74
(v)
76
Question
5
5.
Rainfall of 16 days are given below. Find the mode.
Rainfall (in mm)
6
7
8
9
11
12
13
14
15
No. of days
5
1
1
1
2
3
1
1
1
(i)
7
mm
(ii)
4
mm
(iii)
5
mm
(iv)
8
mm
(v)
6
mm
Question
6
6.
Temperatures of 26 days are given below. Find the mode.
Temperature (in degree C)
25
26
27
28
29
30
31
32
33
34
35
No. of days
2
1
2
1
5
3
4
2
2
3
1
(i)
29
°C
(ii)
31
°C
(iii)
27
°C
(iv)
28
°C
(v)
30
°C
Question
7
7.
Weights of 16 students are given below. Find the mode.
Weight (in kg)
45
46
47
48
49
58
60
No. of students
1
1
5
2
2
4
1
(i)
45
kg
(ii)
46
kg
(iii)
48
kg
(iv)
49
kg
(v)
47
kg
Question
8
8.
Wages of 11 labourers are given below. Find the mode.
Wage (in rupees)
341
405
443
466
482
486
No. of labourers
2
1
1
2
4
1
(i)
₹
484.00
(ii)
₹
480.00
(iii)
₹
481.00
(iv)
₹
483.00
(v)
₹
482.00
Question
9
9.
The following table shows the weights of
87
persons in a group.
Find the
mode weight.
Weight (in kg)
10 - 16
17 - 23
24 - 30
31 - 37
38 - 44
45 - 51
52 - 58
59 - 65
No. of persons
5
15
12
9
5
18
17
6
(i)
51
kg
(ii)
50
kg
(iii)
49
kg
(iv)
52
kg
(v)
53
kg
Question
10
10.
The following table shows the weights of
62
persons in a group.
Find the
mode weight.
Weight (in kg)
10 - 17
17 - 24
24 - 31
31 - 38
38 - 45
No. of persons
5
19
17
14
7
(i)
201
8
kg
(ii)
187
8
kg
(iii)
93
4
kg
(iv)
185
8
kg
(v)
193
8
kg
Question
11
11.
The daily wages of
120
workers in a factory are given below.
Find the
mode wage.
Wage (in rupees)
30 - 38
39 - 47
48 - 56
57 - 65
66 - 74
75 - 83
84 - 92
93 - 101
No. of workers
30
7
8
24
8
7
8
28
(i)
₹
36.59
(ii)
₹
35.59
(iii)
₹
34.59
(iv)
₹
34.61
(v)
₹
34.60
Question
12
12.
The daily wages of
166
workers in a factory are given below.
Find the
mode wage.
Wage (in rupees)
20 - 27
27 - 34
34 - 41
41 - 48
48 - 55
55 - 62
62 - 69
No. of workers
19
27
21
18
29
25
27
(i)
₹
54.13
(ii)
₹
53.13
(iii)
₹
53.27
(iv)
₹
53.20
(v)
₹
55.13
Question
13
13.
A frequency distribution table is given below.
Find the
mode .
Class-Interval
17 - 23
24 - 30
31 - 37
38 - 44
45 - 51
52 - 58
Frequency
6
20
29
44
41
6
(i)
131
3
(ii)
130
3
(iii)
44
(iv)
136
3
(v)
133
3
Question
14
14.
A frequency distribution table is given below.
Find the
mode .
Class-Interval
18 - 25
25 - 32
32 - 39
39 - 46
46 - 53
53 - 60
60 - 67
67 - 74
Frequency
36
45
36
13
18
46
49
19
(i)
678
11
(ii)
689
11
(iii)
668
11
(iv)
667
11
(v)
669
11
Question
15
15.
The following frequency distribution table gives
the monthly consumption of electricity of
82
consumers in a locality.
Find the
mode units.
Monthly consumption (in units)
68 - 78
78 - 88
88 - 98
98 - 108
108 - 118
118 - 128
No. of consumers
5
5
14
16
18
24
(i)
119
units
(ii)
120
units
(iii)
122
units
(iv)
121
units
(v)
118
units
Assignment Key
1) (v)
2) (i)
3) (i)
4) (iv)
5) (v)
6) (i)
7) (v)
8) (v)
9) (i)
10) (iv)
11) (iii)
12) (ii)
13) (ii)
14) (iv)
15) (ii)
