EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Statistics
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
The scores obtained by 14 students in a test are given below. Find the median.
6
18
3
20
9
13
8
1
14
13
20
11
5
3
(i)
3
(ii)
1
(iii)
10
2
7
(iv)
10
(v)
19
Question
2
2.
Find the median of all prime numbers between 40 and 60.
(i)
48
(ii)
50
(iii)
46
(iv)
44
(v)
47
Question
3
3.
Find the median of all the factors of 20.
(i)
9
2
(ii)
5
(iii)
17
4
(iv)
11
2
(v)
7
2
Question
4
4.
Find the median of first 9 whole numbers.
(i)
2
(ii)
4
(iii)
7
(iv)
3
(v)
5
Question
5
5.
Find the median of all the factors of 30.
(i)
9
2
(ii)
13
2
(iii)
6
(iv)
11
2
(v)
21
4
Question
6
6.
Find the median of the first 10 odd numbers.
(i)
11
(ii)
9
(iii)
13
(iv)
8
(v)
10
Question
7
7.
Find the median of the first 20 even numbers.
(i)
19
(ii)
20
(iii)
21
(iv)
24
(v)
22
Question
8
8.
The marks obtained by 12 students in a test are given below. Find their median marks.
37
27
14
35
20
17
16
37
8
50
42
32
(i)
61
2
(ii)
117
4
(iii)
57
2
(iv)
30
(v)
59
2
Question
9
9.
Heights of 10 students (in cm) are given below. Find the median height.
148
143
147
157
154
139
158
130
131
128
(i)
145
cm
(ii)
146
cm
(iii)
144
cm
(iv)
147
cm
(v)
143
cm
Question
10
10.
Heights of 15 plants (in cm) are given below. Find the median height.
83
75
93
50
60
50
71
81
77
54
90
61
61
94
69
(i)
72
cm
(ii)
69
cm
(iii)
71
cm
(iv)
73
cm
(v)
70
cm
Question
11
11.
Ages of 10 students (in years) are given below. Find the median age.
11
15
11
11
13
14
12
11
13
14
(i)
25
2
years
(ii)
27
2
years
(iii)
29
2
years
(iv)
13
years
Question
12
12.
Rainfall of 12 days (in mm) are given below. Find the median rainfall.
12
15
14
9
7
6
15
8
14
6
9
7
(i)
11
mm
(ii)
9
mm
(iii)
7
mm
(iv)
8
mm
(v)
10
mm
Question
13
13.
Scores of 13 students are given below. Find the median score.
70
71
79
72
83
75
71
80
90
73
73
70
76
(i)
72
(ii)
74
(iii)
75
(iv)
71
(v)
73
Question
14
14.
Temperatures of 14 days (in °C) are given below. Find the median temperature.
28
35
25
27
33
28
26
30
34
31
25
26
25
28
(i)
27
°C
(ii)
26
°C
(iii)
28
°C
(iv)
30
°C
(v)
29
°C
Question
15
15.
Weights of 14 students (in kg) are given below. Find the median weight.
53
60
48
40
53
58
52
60
56
49
47
58
48
43
(i)
109
2
kg
(ii)
105
2
kg
(iii)
107
2
kg
(iv)
53
kg
Question
16
16.
Daily wages of 10 labourers (in ₹) are given below. Find the median wage.
309
446
302
374
457
370
392
470
357
428
(i)
₹
381.00
(ii)
₹
385.00
(iii)
₹
383.00
(iv)
₹
384.00
(v)
₹
382.00
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
30
,
find the observations of the data
(i)
24
,
30
,
44
(ii)
21
,
30
,
42
(iii)
40
,
30
,
80
(iv)
20
,
30
,
40
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
12
and
8
respectively and
x
3
-
x
1
=
20
,
find
x
1
,
x
2
,
x
3
(i)
8
,
8
,
28
(ii)
6
,
8
,
26
(iii)
8
,
8
,
48
(iv)
4
,
8
,
24
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
15
and x +
15
and the median as
22
,
find the value of x.
(i)
7
(ii)
5
(iii)
8
(iv)
6
(v)
9
Assignment Key
1) (iv)
2) (v)
3) (i)
4) (ii)
5) (iv)
6) (v)
7) (iii)
8) (v)
9) (i)
10) (iii)
11) (i)
12) (ii)
13) (v)
14) (iii)
15) (ii)
16) (iii)
17) (iv)
18) (iv)
19) (i)
