EduSahara™ Assignment
Name : Mode of Grouped Data
Chapter : Statistics
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
Heights of 21 students are given below. Find the mode.
Height (in cm)
131
144
147
151
154
169
173
175
No. of students
2
3
3
1
5
1
3
3
(i)
156
cm
(ii)
155
cm
(iii)
152
cm
(iv)
153
cm
(v)
154
cm
Question
2
2.
Heights of 11 plants are given below. Find the mode.
Height (in cm)
60
71
78
83
90
No. of plants
2
2
2
4
1
(i)
85
cm
(ii)
82
cm
(iii)
84
cm
(iv)
83
cm
(v)
81
cm
Question
3
3.
Ages of 11 students are given below. Find the mode.
Age (in years)
10
11
13
14
15
No. of students
1
2
4
2
2
(i)
12
years
(ii)
14
years
(iii)
13
years
(iv)
15
years
(v)
11
years
Question
4
4.
Scores of 21 students are given below. Find the mode.
Score
70
71
72
73
79
81
88
89
90
No. of students
6
3
1
4
1
1
2
2
1
(i)
69
(ii)
72
(iii)
68
(iv)
70
(v)
71
Question
5
5.
Rainfall of 16 days are given below. Find the mode.
Rainfall (in mm)
6
7
11
12
13
14
No. of days
2
3
1
5
3
2
(i)
14
mm
(ii)
13
mm
(iii)
11
mm
(iv)
10
mm
(v)
12
mm
Question
6
6.
Temperatures of 21 days are given below. Find the mode.
Temperature (in degree C)
25
27
28
29
31
32
33
35
No. of days
2
2
1
1
3
6
2
4
(i)
32
°C
(ii)
30
°C
(iii)
34
°C
(iv)
33
°C
(v)
31
°C
Question
7
7.
Weights of 16 students are given below. Find the mode.
Weight (in kg)
40
42
45
46
51
55
60
No. of students
1
2
6
1
3
2
1
(i)
43
kg
(ii)
45
kg
(iii)
44
kg
(iv)
47
kg
(v)
46
kg
Question
8
8.
Wages of 16 labourers are given below. Find the mode.
Wage (in rupees)
349
370
397
418
421
436
459
No. of labourers
3
2
2
1
1
2
5
(i)
₹
457.00
(ii)
₹
458.00
(iii)
₹
461.00
(iv)
₹
460.00
(v)
₹
459.00
Question
9
9.
The following table shows the weights of
95
persons in a group.
Find the
mode weight.
Weight (in kg)
20 - 25
26 - 31
32 - 37
38 - 43
44 - 49
50 - 55
56 - 61
62 - 67
No. of persons
11
10
9
8
20
7
11
19
(i)
2369
50
kg
(ii)
2419
50
kg
(iii)
2319
50
kg
(iv)
2321
50
kg
(v)
232
5
kg
Question
10
10.
The following table shows the weights of
120
persons in a group.
Find the
mode weight.
Weight (in kg)
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
80 - 88
88 - 96
96 - 104
No. of persons
16
14
10
17
19
6
20
18
(i)
93
kg
(ii)
95
kg
(iii)
94
kg
(iv)
97
kg
(v)
96
kg
Question
11
11.
The daily wages of
113
workers in a factory are given below.
Find the
mode wage.
Wage (in rupees)
30 - 35
36 - 41
42 - 47
48 - 53
54 - 59
60 - 65
66 - 71
No. of workers
15
21
23
18
9
11
16
(i)
₹
45.21
(ii)
₹
44.21
(iii)
₹
43.21
(iv)
₹
43.36
(v)
₹
43.29
Question
12
12.
The daily wages of
150
workers in a factory are given below.
Find the
mode wage.
Wage (in rupees)
30 - 40
40 - 50
50 - 60
60 - 70
70 - 80
80 - 90
90 - 100
100 - 110
No. of workers
18
24
27
11
6
19
15
30
(i)
₹
104.00
(ii)
₹
104.33
(iii)
₹
103.33
(iv)
₹
103.67
(v)
₹
105.33
Question
13
13.
A frequency distribution table is given below.
Find the
mode .
Class-Interval
1 - 8
9 - 16
17 - 24
25 - 32
33 - 40
Frequency
24
18
7
4
21
(i)
79
10
(ii)
69
10
(iii)
7
(iv)
89
10
(v)
71
10
Question
14
14.
A frequency distribution table is given below.
Find the
mode .
Class-Interval
16 - 22
22 - 28
28 - 34
34 - 40
40 - 46
46 - 52
52 - 58
Frequency
2
23
2
44
21
29
46
(i)
161
3
(ii)
1126
21
(iii)
376
7
(iv)
1168
21
(v)
1147
21
Question
15
15.
The following frequency distribution table gives
the monthly consumption of electricity of
67
consumers in a locality.
Find the
mode units.
Monthly consumption (in units)
80 - 90
90 - 100
100 - 110
110 - 120
120 - 130
No. of consumers
15
14
16
8
14
(i)
100
units
(ii)
104
units
(iii)
101
units
(iv)
103
units
(v)
102
units
Assignment Key
1) (v)
2) (iv)
3) (iii)
4) (iv)
5) (v)
6) (i)
7) (ii)
8) (v)
9) (iii)
10) (ii)
11) (iii)
12) (iii)
13) (ii)
14) (ii)
15) (v)
