EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Statistics
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
The scores obtained by 12 students in a test are given below. Find the median.
8
2
12
3
14
4
10
12
7
16
6
19
(i)
2
(ii)
12
(iii)
9
5
12
(iv)
17
(v)
9
Question
2
2.
Find the median of all prime numbers between 30 and 60.
(i)
44
(ii)
42
(iii)
43
(iv)
40
(v)
46
Question
3
3.
Find the median of all the factors of 40.
(i)
25
4
(ii)
11
2
(iii)
13
2
(iv)
7
(v)
15
2
Question
4
4.
Find the median of first 9 whole numbers.
(i)
2
(ii)
6
(iii)
5
(iv)
3
(v)
4
Question
5
5.
Find the median of all the factors of 10.
(i)
9
2
(ii)
4
(iii)
5
2
(iv)
7
2
(v)
13
4
Question
6
6.
Find the median of the first 20 odd numbers.
(i)
22
(ii)
21
(iii)
19
(iv)
18
(v)
20
Question
7
7.
Find the median of the first 10 even numbers.
(i)
14
(ii)
10
(iii)
12
(iv)
11
(v)
9
Question
8
8.
The marks obtained by 11 students in a test are given below. Find their median marks.
33
39
47
23
49
4
39
34
17
46
19
(i)
36
(ii)
35
(iii)
34
(iv)
33
(v)
32
Question
9
9.
Heights of 12 students (in cm) are given below. Find the median height.
131
172
129
125
154
147
167
140
156
129
158
172
(i)
305
2
cm
(ii)
151
cm
(iii)
301
2
cm
(iv)
303
2
cm
Question
10
10.
Heights of 15 plants (in cm) are given below. Find the median height.
54
91
68
62
78
64
97
60
50
83
64
79
97
50
86
(i)
70
cm
(ii)
68
cm
(iii)
67
cm
(iv)
69
cm
(v)
66
cm
Question
11
11.
Ages of 14 students (in years) are given below. Find the median age.
10
13
11
10
10
15
13
14
13
12
15
12
12
10
(i)
10
years
(ii)
12
years
(iii)
14
years
(iv)
11
years
(v)
13
years
Question
12
12.
Rainfall of 15 days (in mm) are given below. Find the median rainfall.
7
8
15
11
7
14
15
11
15
7
15
11
13
11
15
(i)
13
mm
(ii)
9
mm
(iii)
10
mm
(iv)
12
mm
(v)
11
mm
Question
13
13.
Scores of 12 students are given below. Find the median score.
78
71
86
86
87
82
81
81
83
77
79
70
(i)
81
(ii)
79
(iii)
83
(iv)
82
(v)
80
Question
14
14.
Temperatures of 15 days (in °C) are given below. Find the median temperature.
33
31
26
26
30
32
35
32
25
33
26
25
34
29
26
(i)
28
°C
(ii)
32
°C
(iii)
31
°C
(iv)
29
°C
(v)
30
°C
Question
15
15.
Weights of 14 students (in kg) are given below. Find the median weight.
56
57
42
47
41
41
56
46
46
44
50
60
52
54
(i)
99
2
kg
(ii)
49
kg
(iii)
97
2
kg
(iv)
101
2
kg
Question
16
16.
Daily wages of 15 labourers (in ₹) are given below. Find the median wage.
500
471
363
304
483
466
414
481
380
428
311
496
462
371
386
(i)
₹
429.00
(ii)
₹
430.00
(iii)
₹
428.00
(iv)
₹
426.00
(v)
₹
427.00
Question
17
17.
The observations of an ungrouped data are
x
1
,
x
2
,
2x
1
and
x
1
<
x
2
<
2x
1
.
If the mean and median of the data are equal to
18
,
find the observations of the data
(i)
24
,
18
,
48
(ii)
12
,
18
,
24
(iii)
16
,
18
,
28
(iv)
13
,
18
,
26
Question
18
18.
The observations of an ungrouped data are
x
1
,
x
2
,
x
3
and
x
1
<
x
2
<
x
3
.
If the mean and median of the data are
54
and
36
respectively and
x
3
-
x
1
=
90
,
find
x
1
,
x
2
,
x
3
(i)
20
,
36
,
110
(ii)
22
,
36
,
112
(iii)
36
,
36
,
216
(iv)
18
,
36
,
108
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
27
and x +
38
and the median as
34
1
2
,
find the value of x.
(i)
1
(ii)
2
(iii)
4
(iv)
3
(v)
-1
Assignment Key
1) (v)
2) (iii)
3) (iii)
4) (v)
5) (iv)
6) (v)
7) (iv)
8) (iii)
9) (iii)
10) (ii)
11) (ii)
12) (v)
13) (i)
14) (v)
15) (iii)
16) (iii)
17) (ii)
18) (iv)
19) (ii)
