EduSahara™ Assignment
Name : Median of Grouped Data
Chapter : Statistics
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
Heights of 30 students are given below. Find the median.
Height (in cm)
128
136
149
150
151
154
158
169
No. of students
3
3
4
2
3
7
4
4
(i)
309
2
cm
(ii)
307
2
cm
(iii)
153
cm
(iv)
305
2
cm
Question
2
2.
Heights of 25 plants are given below. Find the median.
Height (in cm)
57
59
61
66
70
72
80
88
89
92
No. of plants
2
2
3
3
4
2
1
5
2
1
(i)
70
cm
(ii)
72
cm
(iii)
68
cm
(iv)
69
cm
(v)
71
cm
Question
3
3.
Ages of 10 students are given below. Find the median.
Age (in years)
11
12
13
14
15
No. of students
2
1
3
1
3
(i)
12
years
(ii)
15
years
(iii)
11
years
(iv)
13
years
(v)
14
years
Question
4
4.
Scores of 30 students are given below. Find the median.
Score
76
78
80
84
85
88
No. of students
2
5
3
8
6
6
(i)
85
(ii)
84
(iii)
86
(iv)
82
(v)
83
Question
5
5.
Rainfall of 20 days are given below. Find the median.
Rainfall (in mm)
5
6
7
9
10
12
13
14
No. of days
4
2
1
1
3
3
4
2
(i)
10
mm
(ii)
8
mm
(iii)
12
mm
(iv)
11
mm
(v)
9
mm
Question
6
6.
Temperatures of 10 days are given below. Find the median.
Temperature (in degree C)
25
26
31
32
33
No. of days
1
1
4
3
1
(i)
30
°C
(ii)
29
°C
(iii)
32
°C
(iv)
33
°C
(v)
31
°C
Question
7
7.
Weights of 10 students are given below. Find the median.
Weight (in kg)
42
49
50
52
58
59
No. of students
1
1
1
2
3
2
(i)
56
kg
(ii)
57
kg
(iii)
53
kg
(iv)
55
kg
(v)
54
kg
Question
8
8.
Wages of 15 labourers are given below. Find the median.
Wage (in rupees)
304
324
350
372
412
448
461
464
468
No. of labourers
1
3
1
2
1
1
1
3
2
(i)
₹
412.00
(ii)
₹
410.00
(iii)
₹
414.00
(iv)
₹
411.00
(v)
₹
413.00
Question
9
9.
The following table shows the weights of
76
persons in a group.
Find the
median weight.
Weight (in kg)
10 - 16
17 - 23
24 - 30
31 - 37
38 - 44
45 - 51
52 - 58
No. of persons
13
7
15
11
7
16
7
(i)
65
2
kg
(ii)
357
11
kg
(iii)
757
22
kg
(iv)
735
22
kg
(v)
713
22
kg
Question
10
10.
The following table shows the weights of
101
persons in a group.
Find the
median weight.
Weight (in kg)
50 - 58
58 - 66
66 - 74
74 - 82
82 - 90
90 - 98
98 - 106
No. of persons
13
18
16
19
10
8
17
(i)
1453
19
kg
(ii)
1472
19
kg
(iii)
1435
19
kg
(iv)
1436
19
kg
(v)
1434
19
kg
Question
11
11.
The daily wages of
143
workers in a factory are given below.
Find the
median wage.
Wage (in rupees)
30 - 36
37 - 43
44 - 50
51 - 57
58 - 64
65 - 71
72 - 78
79 - 85
No. of workers
13
13
18
21
27
19
25
7
(i)
₹
60.19
(ii)
₹
59.22
(iii)
₹
61.19
(iv)
₹
59.26
(v)
₹
59.19
Question
12
12.
The daily wages of
111
workers in a factory are given below.
Find the
median wage.
Wage (in rupees)
30 - 40
40 - 50
50 - 60
60 - 70
70 - 80
80 - 90
90 - 100
No. of workers
19
17
14
17
13
8
23
(i)
₹
65.24
(ii)
₹
63.24
(iii)
₹
63.35
(iv)
₹
64.24
(v)
₹
63.29
Question
13
13.
A frequency distribution table is given below.
Find the
median .
Class-Interval
8 - 15
16 - 23
24 - 31
32 - 39
40 - 47
48 - 55
56 - 63
64 - 71
Frequency
1
23
45
35
36
9
19
25
(i)
543
14
(ii)
265
7
(iii)
557
14
(iv)
529
14
(v)
531
14
Question
14
14.
A frequency distribution table is given below.
Find the
median .
Class-Interval
8 - 14
14 - 20
20 - 26
26 - 32
32 - 38
Frequency
30
42
6
34
17
(i)
265
14
(ii)
267
14
(iii)
279
14
(iv)
19
(v)
293
14
Question
15
15.
The following frequency distribution table gives
the monthly consumption of electricity of
85
consumers in a locality.
Find the
median units.
Monthly consumption (in units)
49 - 69
69 - 89
89 - 109
109 - 129
129 - 149
No. of consumers
17
13
23
23
9
(i)
2297
23
units
(ii)
2298
23
units
(iii)
2343
23
units
(iv)
2299
23
units
(v)
2320
23
units
Assignment Key
1) (iv)
2) (i)
3) (iv)
4) (ii)
5) (i)
6) (v)
7) (iv)
8) (i)
9) (v)
10) (v)
11) (v)
12) (ii)
13) (iv)
14) (i)
15) (i)
