EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Statistics
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
The scores obtained by 11 students in a test are given below. Find the median.
4
2
10
3
1
7
7
8
6
7
19
(i)
18
(ii)
19
(iii)
1
(iv)
6
8
11
(v)
7
Question
2
2.
Find the median of all prime numbers between 10 and 60.
(i)
32
(ii)
30
(iii)
31
(iv)
28
(v)
33
Question
3
3.
Find the median of all the factors of 30.
(i)
21
4
(ii)
13
2
(iii)
11
2
(iv)
9
2
(v)
6
Question
4
4.
Find the median of first 7 whole numbers.
(i)
3
(ii)
2
(iii)
0
(iv)
6
(v)
4
Question
5
5.
Find the median of all the factors of 10.
(i)
9
2
(ii)
13
4
(iii)
7
2
(iv)
4
(v)
5
2
Question
6
6.
Find the median of the first 20 odd numbers.
(i)
21
(ii)
22
(iii)
20
(iv)
18
(v)
19
Question
7
7.
Find the median of the first 20 even numbers.
(i)
22
(ii)
21
(iii)
24
(iv)
20
(v)
19
Question
8
8.
The marks obtained by 14 students in a test are given below. Find their median marks.
6
34
43
3
39
45
26
39
39
36
40
6
13
29
(i)
35
(ii)
32
(iii)
34
(iv)
37
(v)
36
Question
9
9.
Heights of 13 students (in cm) are given below. Find the median height.
127
163
129
129
155
147
175
169
164
132
164
125
143
(i)
148
cm
(ii)
145
cm
(iii)
149
cm
(iv)
146
cm
(v)
147
cm
Question
10
10.
Heights of 11 plants (in cm) are given below. Find the median height.
96
77
83
77
82
84
100
97
76
54
85
(i)
84
cm
(ii)
85
cm
(iii)
81
cm
(iv)
82
cm
(v)
83
cm
Question
11
11.
Ages of 12 students (in years) are given below. Find the median age.
12
13
10
15
13
12
15
15
15
13
12
14
(i)
11
years
(ii)
13
years
(iii)
15
years
(iv)
12
years
(v)
14
years
Question
12
12.
Rainfall of 14 days (in mm) are given below. Find the median rainfall.
8
10
13
12
10
13
5
15
13
13
8
6
11
12
(i)
12
mm
(ii)
25
2
mm
(iii)
27
2
mm
(iv)
23
2
mm
Question
13
13.
Scores of 15 students are given below. Find the median score.
72
85
77
87
72
87
77
80
77
83
84
82
85
77
81
(i)
80
(ii)
83
(iii)
82
(iv)
81
(v)
79
Question
14
14.
Temperatures of 12 days (in °C) are given below. Find the median temperature.
33
29
26
25
30
33
30
31
27
29
33
34
(i)
30
°C
(ii)
31
°C
(iii)
29
°C
(iv)
28
°C
(v)
32
°C
Question
15
15.
Weights of 13 students (in kg) are given below. Find the median weight.
44
53
41
55
53
53
56
49
54
45
41
54
59
(i)
52
kg
(ii)
51
kg
(iii)
55
kg
(iv)
53
kg
(v)
54
kg
Question
16
16.
Daily wages of 12 labourers (in ₹) are given below. Find the median wage.
338
390
482
324
442
390
400
375
362
349
391
452
(i)
₹
390.00
(ii)
₹
391.00
(iii)
₹
392.00
(iv)
₹
388.00
(v)
₹
389.00
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)
21
,
30
,
42
(ii)
40
,
30
,
80
(iii)
24
,
30
,
44
(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
42
and
28
respectively and
x
3
-
x
1
=
70
,
find
x
1
,
x
2
,
x
3
(i)
18
,
28
,
88
(ii)
16
,
28
,
86
(iii)
14
,
28
,
84
(iv)
28
,
28
,
168
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
23
and x +
25
and the median as
32
,
find the value of x.
(i)
11
(ii)
7
(iii)
9
(iv)
5
(v)
8
Assignment Key
1) (v)
2) (iii)
3) (iii)
4) (i)
5) (iii)
6) (iii)
7) (ii)
8) (i)
9) (v)
10) (v)
11) (ii)
12) (iv)
13) (iv)
14) (i)
15) (iv)
16) (i)
17) (iv)
18) (iii)
19) (v)
