EduSahara™ Assignment
Name : Mode of Grouped Data
Chapter : Statistics
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
Heights of 26 students are given below. Find the mode.
Height (in cm)
126
134
141
143
148
155
164
167
168
171
No. of students
2
1
5
2
1
4
2
4
1
4
(i)
142
cm
(ii)
140
cm
(iii)
143
cm
(iv)
141
cm
(v)
139
cm
Question
2
2.
Heights of 31 plants are given below. Find the mode.
Height (in cm)
51
55
62
63
71
83
89
No. of plants
4
2
2
9
8
4
2
(i)
61
cm
(ii)
63
cm
(iii)
62
cm
(iv)
64
cm
(v)
65
cm
Question
3
3.
Ages of 11 students are given below. Find the mode.
Age (in years)
10
11
12
14
No. of students
5
1
2
3
(i)
11
years
(ii)
10
years
(iii)
9
years
(iv)
8
years
(v)
12
years
Question
4
4.
Scores of 26 students are given below. Find the mode.
Score
70
72
74
75
78
79
83
86
88
90
No. of students
5
2
4
4
1
4
3
1
1
1
(i)
71
(ii)
70
(iii)
69
(iv)
68
(v)
72
Question
5
5.
Rainfall of 26 days are given below. Find the mode.
Rainfall (in mm)
5
6
7
8
9
10
11
12
13
14
15
No. of days
2
4
3
2
2
2
2
3
2
3
1
(i)
4
mm
(ii)
6
mm
(iii)
7
mm
(iv)
8
mm
(v)
5
mm
Question
6
6.
Temperatures of 21 days are given below. Find the mode.
Temperature (in degree C)
26
28
29
30
31
32
33
34
35
No. of days
1
1
2
2
3
2
7
1
2
(i)
31
°C
(ii)
34
°C
(iii)
33
°C
(iv)
32
°C
(v)
35
°C
Question
7
7.
Weights of 31 students are given below. Find the mode.
Weight (in kg)
40
41
42
43
44
45
48
50
54
57
58
No. of students
3
2
5
4
4
2
2
4
1
2
2
(i)
41
kg
(ii)
43
kg
(iii)
42
kg
(iv)
44
kg
(v)
40
kg
Question
8
8.
Wages of 31 labourers are given below. Find the mode.
Wage (in rupees)
310
319
325
355
380
393
401
416
433
435
484
No. of labourers
1
4
2
2
3
1
2
3
6
5
2
(i)
₹
432.00
(ii)
₹
434.00
(iii)
₹
435.00
(iv)
₹
431.00
(v)
₹
433.00
Question
9
9.
The following table shows the weights of
61
persons in a group.
Find the
mode weight.
Weight (in kg)
30 - 40
41 - 51
52 - 62
63 - 73
74 - 84
No. of persons
13
18
6
8
16
(i)
1555
34
kg
(ii)
1487
34
kg
(iii)
1489
34
kg
(iv)
1521
34
kg
(v)
744
17
kg
Question
10
10.
The following table shows the weights of
49
persons in a group.
Find the
mode weight.
Weight (in kg)
30 - 38
38 - 46
46 - 54
54 - 62
62 - 70
No. of persons
9
13
7
6
14
(i)
716
11
kg
(ii)
725
11
kg
(iii)
65
kg
(iv)
736
11
kg
(v)
714
11
kg
Question
11
11.
The daily wages of
77
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
No. of workers
13
14
6
22
15
7
(i)
₹
72.15
(ii)
₹
71.15
(iii)
₹
70.20
(iv)
₹
70.15
(v)
₹
70.17
Question
12
12.
The daily wages of
132
workers in a factory are given below.
Find the
mode wage.
Wage (in rupees)
30 - 37
37 - 44
44 - 51
51 - 58
58 - 65
65 - 72
72 - 79
79 - 86
No. of workers
26
28
20
7
14
24
6
7
(i)
₹
39.40
(ii)
₹
38.80
(iii)
₹
38.60
(iv)
₹
38.40
(v)
₹
40.40
Question
13
13.
A frequency distribution table is given below.
Find the
mode .
Class-Interval
13 - 21
22 - 30
31 - 39
40 - 48
49 - 57
Frequency
33
23
27
27
49
(i)
7567
142
(ii)
7283
142
(iii)
3642
71
(iv)
7285
142
(v)
7425
142
Question
14
14.
A frequency distribution table is given below.
Find the
mode .
Class-Interval
15 - 24
24 - 33
33 - 42
42 - 51
51 - 60
60 - 69
69 - 78
78 - 87
Frequency
19
39
34
43
1
41
13
41
(i)
741
17
(ii)
758
17
(iii)
775
17
(iv)
743
17
(v)
742
17
Question
15
15.
The following frequency distribution table gives
the monthly consumption of electricity of
96
consumers in a locality.
Find the
mode units.
Monthly consumption (in units)
62 - 82
82 - 102
102 - 122
122 - 142
142 - 162
No. of consumers
19
25
24
15
13
(i)
701
7
units
(ii)
694
7
units
(iii)
708
7
units
(iv)
695
7
units
(v)
696
7
units
Assignment Key
1) (iv)
2) (ii)
3) (ii)
4) (ii)
5) (ii)
6) (iii)
7) (iii)
8) (v)
9) (ii)
10) (v)
11) (iv)
12) (iv)
13) (ii)
14) (i)
15) (ii)
