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)
129
131
136
139
148
150
151
168
170
No. of students
5
4
1
3
7
2
4
3
1
(i)
149
cm
(ii)
146
cm
(iii)
150
cm
(iv)
147
cm
(v)
148
cm
Question
2
2.
Heights of 10 plants are given below. Find the median.
Height (in cm)
56
77
86
94
96
100
No. of plants
2
3
1
1
2
1
(i)
167
2
cm
(ii)
165
2
cm
(iii)
82
cm
(iv)
163
2
cm
Question
3
3.
Ages of 30 students are given below. Find the median.
Age (in years)
10
11
12
13
14
15
No. of students
3
4
4
7
5
7
(i)
12
years
(ii)
14
years
(iii)
11
years
(iv)
13
years
(v)
15
years
Question
4
4.
Scores of 10 students are given below. Find the median.
Score
80
84
85
86
88
89
No. of students
1
1
1
1
3
3
(i)
87
(ii)
86
(iii)
89
(iv)
90
(v)
88
Question
5
5.
Rainfall of 10 days are given below. Find the median.
Rainfall (in mm)
5
7
10
11
12
13
No. of days
2
2
2
1
1
2
(i)
12
mm
(ii)
11
mm
(iii)
10
mm
(iv)
9
mm
(v)
8
mm
Question
6
6.
Temperatures of 10 days are given below. Find the median.
Temperature (in degree C)
25
27
28
32
33
35
No. of days
2
1
1
2
2
2
(i)
33
°C
(ii)
31
°C
(iii)
34
°C
(iv)
30
°C
(v)
32
°C
Question
7
7.
Weights of 20 students are given below. Find the median.
Weight (in kg)
44
49
52
54
58
59
60
No. of students
3
3
1
6
3
2
2
(i)
56
kg
(ii)
54
kg
(iii)
53
kg
(iv)
55
kg
(v)
52
kg
Question
8
8.
Wages of 25 labourers are given below. Find the median.
Wage (in rupees)
331
352
367
429
457
471
487
No. of labourers
4
3
2
4
7
2
3
(i)
₹
430.00
(ii)
₹
429.00
(iii)
₹
427.00
(iv)
₹
431.00
(v)
₹
428.00
Question
9
9.
The following table shows the weights of
67
persons in a group.
Find the
median weight.
Weight (in kg)
40 - 48
49 - 57
58 - 66
67 - 75
76 - 84
85 - 93
No. of persons
10
7
9
19
15
7
(i)
1350
19
kg
(ii)
1333
19
kg
(iii)
1369
19
kg
(iv)
1331
19
kg
(v)
1332
19
kg
Question
10
10.
The following table shows the weights of
102
persons in a group.
Find the
median weight.
Weight (in kg)
50 - 59
59 - 68
68 - 77
77 - 86
86 - 95
95 - 104
104 - 113
No. of persons
16
8
16
15
15
19
13
(i)
428
5
kg
(ii)
419
5
kg
(iii)
423
5
kg
(iv)
418
5
kg
(v)
84
kg
Question
11
11.
The daily wages of
158
workers in a factory are given below.
Find the
median wage.
Wage (in rupees)
20 - 30
31 - 41
42 - 52
53 - 63
64 - 74
75 - 85
86 - 96
No. of workers
27
29
30
22
8
19
23
(i)
₹
49.93
(ii)
₹
50.00
(iii)
₹
50.93
(iv)
₹
51.93
(v)
₹
50.07
Question
12
12.
The daily wages of
64
workers in a factory are given below.
Find the
median wage.
Wage (in rupees)
20 - 25
25 - 30
30 - 35
35 - 40
40 - 45
No. of workers
10
5
14
18
17
(i)
₹
37.83
(ii)
₹
36.83
(iii)
₹
36.00
(iv)
₹
36.17
(v)
₹
35.83
Question
13
13.
A frequency distribution table is given below.
Find the
median .
Class-Interval
5 - 15
16 - 26
27 - 37
38 - 48
49 - 59
60 - 70
71 - 81
Frequency
36
25
20
13
14
41
23
(i)
1085
26
(ii)
1087
26
(iii)
1137
26
(iv)
543
13
(v)
1111
26
Question
14
14.
A frequency distribution table is given below.
Find the
median .
Class-Interval
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
Frequency
50
14
48
24
42
(i)
113
4
(ii)
227
8
(iii)
241
8
(iv)
233
8
(v)
225
8
Question
15
15.
The following frequency distribution table gives
the monthly consumption of electricity of
57
consumers in a locality.
Find the
median units.
Monthly consumption (in units)
62 - 72
72 - 82
82 - 92
92 - 102
102 - 112
No. of consumers
5
12
10
13
17
(i)
1211
13
units
(ii)
1237
13
units
(iii)
1212
13
units
(iv)
1224
13
units
(v)
1213
13
units
Assignment Key
1) (v)
2) (iv)
3) (iv)
4) (v)
5) (iii)
6) (v)
7) (ii)
8) (ii)
9) (iv)
10) (iv)
11) (i)
12) (v)
13) (i)
14) (v)
15) (i)
