EduSahara™ Assignment
Name : Mode of Grouped Data
Chapter : Statistics
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
Heights of 11 students are given below. Find the mode.
Height (in cm)
130
131
135
148
156
159
165
167
No. of students
4
1
1
1
1
1
1
1
(i)
132
cm
(ii)
131
cm
(iii)
130
cm
(iv)
128
cm
(v)
129
cm
Question
2
2.
Heights of 26 plants are given below. Find the mode.
Height (in cm)
51
52
60
63
65
68
69
71
87
91
92
No. of plants
5
2
1
2
2
3
1
4
2
2
2
(i)
51
cm
(ii)
50
cm
(iii)
49
cm
(iv)
52
cm
(v)
53
cm
Question
3
3.
Ages of 26 students are given below. Find the mode.
Age (in years)
10
11
12
13
14
15
No. of students
11
3
2
4
2
4
(i)
10
years
(ii)
8
years
(iii)
9
years
(iv)
11
years
(v)
12
years
Question
4
4.
Scores of 11 students are given below. Find the mode.
Score
73
75
76
78
90
No. of students
4
1
1
2
3
(i)
71
(ii)
75
(iii)
72
(iv)
74
(v)
73
Question
5
5.
Rainfall of 21 days are given below. Find the mode.
Rainfall (in mm)
5
6
7
9
10
11
12
13
14
15
No. of days
1
4
1
1
3
3
2
1
2
3
(i)
8
mm
(ii)
7
mm
(iii)
4
mm
(iv)
6
mm
(v)
5
mm
Question
6
6.
Temperatures of 31 days are given below. Find the mode.
Temperature (in degree C)
25
26
27
28
29
30
31
32
33
34
No. of days
2
2
2
4
3
3
4
7
2
2
(i)
30
°C
(ii)
31
°C
(iii)
33
°C
(iv)
32
°C
(v)
34
°C
Question
7
7.
Weights of 31 students are given below. Find the mode.
Weight (in kg)
42
44
47
50
53
55
59
60
No. of students
7
1
5
5
4
5
2
2
(i)
42
kg
(ii)
41
kg
(iii)
40
kg
(iv)
43
kg
(v)
44
kg
Question
8
8.
Wages of 21 labourers are given below. Find the mode.
Wage (in rupees)
333
356
363
383
391
438
469
No. of labourers
5
3
4
4
1
2
2
(i)
₹
335.00
(ii)
₹
332.00
(iii)
₹
331.00
(iv)
₹
334.00
(v)
₹
333.00
Question
9
9.
The following table shows the weights of
56
persons in a group.
Find the
mode weight.
Weight (in kg)
30 - 38
39 - 47
48 - 56
57 - 65
66 - 74
No. of persons
6
19
17
5
9
(i)
232
5
kg
(ii)
463
10
kg
(iii)
473
10
kg
(iv)
483
10
kg
(v)
93
2
kg
Question
10
10.
The following table shows the weights of
102
persons in a group.
Find the
mode weight.
Weight (in kg)
50 - 59
59 - 68
68 - 77
77 - 86
86 - 95
95 - 104
104 - 113
113 - 122
No. of persons
20
9
7
7
20
6
16
17
(i)
1731
31
kg
(ii)
1792
31
kg
(iii)
1732
31
kg
(iv)
1761
31
kg
(v)
1730
31
kg
Question
11
11.
The daily wages of
106
workers in a factory are given below.
Find the
mode wage.
Wage (in rupees)
30 - 40
41 - 51
52 - 62
63 - 73
74 - 84
85 - 95
96 - 106
No. of workers
6
20
9
26
23
17
5
(i)
₹
73.85
(ii)
₹
72.85
(iii)
₹
71.90
(iv)
₹
71.95
(v)
₹
71.85
Question
12
12.
The daily wages of
98
workers in a factory are given below.
Find the
mode wage.
Wage (in rupees)
30 - 38
38 - 46
46 - 54
54 - 62
62 - 70
70 - 78
78 - 86
86 - 94
No. of workers
14
15
21
14
7
8
6
13
(i)
₹
49.77
(ii)
₹
49.69
(iii)
₹
50.69
(iv)
₹
49.85
(v)
₹
51.69
Question
13
13.
A frequency distribution table is given below.
Find the
mode .
Class-Interval
15 - 20
21 - 26
27 - 32
33 - 38
39 - 44
45 - 50
51 - 56
57 - 62
Frequency
11
32
25
18
49
49
50
44
(i)
360
7
(ii)
733
14
(iii)
747
14
(iv)
719
14
(v)
103
2
Question
14
14.
A frequency distribution table is given below.
Find the
mode .
Class-Interval
18 - 23
23 - 28
28 - 33
33 - 38
38 - 43
43 - 48
Frequency
34
6
43
14
37
27
(i)
339
11
(ii)
2033
66
(iii)
185
6
(iv)
2099
66
(v)
2165
66
Question
15
15.
The following frequency distribution table gives
the monthly consumption of electricity of
72
consumers in a locality.
Find the
mode units.
Monthly consumption (in units)
70 - 80
80 - 90
90 - 100
100 - 110
110 - 120
120 - 130
No. of consumers
14
8
11
19
12
8
(i)
317
3
units
(ii)
316
3
units
(iii)
106
units
(iv)
322
3
units
(v)
319
3
units
Assignment Key
1) (iii)
2) (i)
3) (i)
4) (v)
5) (iv)
6) (iv)
7) (i)
8) (v)
9) (ii)
10) (v)
11) (v)
12) (ii)
13) (iv)
14) (ii)
15) (ii)
