EduSahara™ Assignment
Name : Median of Grouped Data
Chapter : Statistics
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
Heights of 10 students are given below. Find the median.
Height (in cm)
136
152
155
166
No. of students
2
2
4
2
(i)
153
cm
(ii)
156
cm
(iii)
155
cm
(iv)
157
cm
(v)
154
cm
Question
2
2.
Heights of 15 plants are given below. Find the median.
Height (in cm)
51
57
67
71
76
78
80
85
90
No. of plants
2
1
1
2
2
2
1
1
3
(i)
74
cm
(ii)
77
cm
(iii)
75
cm
(iv)
78
cm
(v)
76
cm
Question
3
3.
Ages of 10 students are given below. Find the median.
Age (in years)
10
12
13
14
15
No. of students
1
4
1
2
2
(i)
29
2
years
(ii)
25
2
years
(iii)
13
years
(iv)
27
2
years
Question
4
4.
Scores of 30 students are given below. Find the median.
Score
70
75
76
82
83
85
87
89
No. of students
7
2
3
3
1
5
4
5
(i)
169
2
(ii)
83
(iii)
165
2
(iv)
167
2
Question
5
5.
Rainfall of 30 days are given below. Find the median.
Rainfall (in mm)
5
6
7
8
9
11
12
13
15
No. of days
1
7
2
3
4
5
5
2
1
(i)
10
mm
(ii)
8
mm
(iii)
9
mm
(iv)
7
mm
(v)
11
mm
Question
6
6.
Temperatures of 15 days are given below. Find the median.
Temperature (in degree C)
25
26
27
28
29
31
33
35
No. of days
1
1
1
3
3
2
3
1
(i)
29
°C
(ii)
27
°C
(iii)
30
°C
(iv)
28
°C
(v)
31
°C
Question
7
7.
Weights of 30 students are given below. Find the median.
Weight (in kg)
40
41
42
45
47
53
58
59
No. of students
4
4
2
5
4
7
2
2
(i)
45
kg
(ii)
47
kg
(iii)
48
kg
(iv)
44
kg
(v)
46
kg
Question
8
8.
Wages of 20 labourers are given below. Find the median.
Wage (in rupees)
391
427
458
461
465
468
475
No. of labourers
5
2
1
1
5
1
5
(i)
₹
464.00
(ii)
₹
466.00
(iii)
₹
467.00
(iv)
₹
465.00
(v)
₹
463.00
Question
9
9.
The following table shows the weights of
98
persons in a group.
Find the
median weight.
Weight (in kg)
20 - 28
29 - 37
38 - 46
47 - 55
56 - 64
65 - 73
74 - 82
No. of persons
14
18
20
12
17
8
9
(i)
943
20
kg
(ii)
226
5
kg
(iii)
923
20
kg
(iv)
181
4
kg
(v)
903
20
kg
Question
10
10.
The following table shows the weights of
112
persons in a group.
Find the
median weight.
Weight (in kg)
30 - 37
37 - 44
44 - 51
51 - 58
58 - 65
65 - 72
72 - 79
79 - 86
No. of persons
19
18
17
13
17
14
8
6
(i)
677
13
kg
(ii)
690
13
kg
(iii)
703
13
kg
(iv)
678
13
kg
(v)
679
13
kg
Question
11
11.
The daily wages of
110
workers in a factory are given below.
Find the
median wage.
Wage (in rupees)
30 - 35
36 - 41
42 - 47
48 - 53
54 - 59
60 - 65
66 - 71
72 - 77
No. of workers
11
5
10
25
20
16
9
14
(i)
₹
56.70
(ii)
₹
54.90
(iii)
₹
54.70
(iv)
₹
54.80
(v)
₹
55.70
Question
12
12.
The daily wages of
105
workers in a factory are given below.
Find the
median wage.
Wage (in rupees)
20 - 30
30 - 40
40 - 50
50 - 60
60 - 70
70 - 80
No. of workers
30
5
24
8
23
15
(i)
₹
48.29
(ii)
₹
47.29
(iii)
₹
47.33
(iv)
₹
47.38
(v)
₹
49.29
Question
13
13.
A frequency distribution table is given below.
Find the
median .
Class-Interval
4 - 12
13 - 21
22 - 30
31 - 39
40 - 48
49 - 57
58 - 66
67 - 75
Frequency
30
43
38
7
35
2
28
19
(i)
1071
38
(ii)
1069
38
(iii)
1145
38
(iv)
535
19
(v)
1107
38
Question
14
14.
A frequency distribution table is given below.
Find the
median .
Class-Interval
2 - 8
8 - 14
14 - 20
20 - 26
26 - 32
32 - 38
38 - 44
Frequency
22
17
4
29
35
47
9
(i)
1037
35
(ii)
968
35
(iii)
969
35
(iv)
1002
35
(v)
967
35
Question
15
15.
The following frequency distribution table gives
the monthly consumption of electricity of
86
consumers in a locality.
Find the
median units.
Monthly consumption (in units)
58 - 78
78 - 98
98 - 118
118 - 138
138 - 158
158 - 178
No. of consumers
24
22
19
8
8
5
(i)
1049
11
units
(ii)
1059
11
units
(iii)
1070
11
units
(iv)
1048
11
units
(v)
1050
11
units
Assignment Key
1) (iii)
2) (v)
3) (ii)
4) (iii)
5) (iii)
6) (i)
7) (v)
8) (iv)
9) (v)
10) (i)
11) (iii)
12) (ii)
13) (ii)
14) (v)
15) (iv)
