EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Statistics
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
The scores obtained by 6 students in a test are given below. Find the median.
7
16
13
17
1
4
(i)
1
(ii)
16
(iii)
9
2
3
(iv)
10
(v)
17
Question
2
2.
Find the median of all prime numbers between 50 and 80.
(i)
69
(ii)
68
(iii)
67
(iv)
66
(v)
64
Question
3
3.
Find the median of all the factors of 40.
(i)
7
(ii)
13
2
(iii)
25
4
(iv)
15
2
(v)
11
2
Question
4
4.
Find the median of first 6 whole numbers.
(i)
9
4
(ii)
7
2
(iii)
3
2
(iv)
3
(v)
5
2
Question
5
5.
Find the median of all the factors of 40.
(i)
15
2
(ii)
11
2
(iii)
13
2
(iv)
25
4
(v)
7
Question
6
6.
Find the median of the first 10 odd numbers.
(i)
10
(ii)
9
(iii)
12
(iv)
8
(v)
11
Question
7
7.
Find the median of the first 10 even numbers.
(i)
11
(ii)
12
(iii)
9
(iv)
10
(v)
14
Question
8
8.
The marks obtained by 10 students in a test are given below. Find their median marks.
42
41
16
37
36
42
27
32
1
21
(i)
33
(ii)
31
(iii)
36
(iv)
35
(v)
34
Question
9
9.
Heights of 12 students (in cm) are given below. Find the median height.
153
143
173
147
128
155
149
127
160
168
167
174
(i)
156
cm
(ii)
153
cm
(iii)
155
cm
(iv)
154
cm
(v)
152
cm
Question
10
10.
Heights of 14 plants (in cm) are given below. Find the median height.
52
53
86
86
96
57
50
58
66
88
75
98
81
97
(i)
76
cm
(ii)
77
cm
(iii)
79
cm
(iv)
78
cm
(v)
80
cm
Question
11
11.
Ages of 13 students (in years) are given below. Find the median age.
15
12
12
10
12
10
12
10
15
14
14
10
12
(i)
14
years
(ii)
12
years
(iii)
13
years
(iv)
10
years
(v)
11
years
Question
12
12.
Rainfall of 12 days (in mm) are given below. Find the median rainfall.
15
12
14
11
6
8
13
6
11
6
11
11
(i)
11
mm
(ii)
9
mm
(iii)
10
mm
(iv)
12
mm
(v)
13
mm
Question
13
13.
Scores of 13 students are given below. Find the median score.
72
82
82
88
85
85
73
86
73
81
90
79
73
(i)
84
(ii)
83
(iii)
81
(iv)
82
(v)
80
Question
14
14.
Temperatures of 13 days (in °C) are given below. Find the median temperature.
31
28
33
33
25
35
26
29
34
31
26
33
30
(i)
33
°C
(ii)
30
°C
(iii)
29
°C
(iv)
32
°C
(v)
31
°C
Question
15
15.
Weights of 12 students (in kg) are given below. Find the median weight.
41
54
56
41
52
60
53
43
52
42
60
40
(i)
50
kg
(ii)
51
kg
(iii)
52
kg
(iv)
53
kg
(v)
54
kg
Question
16
16.
Daily wages of 10 labourers (in ₹) are given below. Find the median wage.
371
356
325
423
481
314
387
396
492
490
(i)
₹
392.50
(ii)
₹
392.00
(iii)
₹
391.50
(iv)
₹
393.50
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
3
,
find the observations of the data
(i)
3
,
3
,
6
(ii)
6
,
3
,
8
(iii)
2
,
3
,
4
(iv)
4
,
3
,
8
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)
18
,
36
,
108
(ii)
36
,
36
,
216
(iii)
22
,
36
,
112
(iv)
20
,
36
,
110
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
25
and x +
31
and the median as
33
,
find the value of x.
(i)
5
(ii)
2
(iii)
8
(iv)
4
(v)
6
Assignment Key
1) (iv)
2) (iii)
3) (ii)
4) (v)
5) (iii)
6) (i)
7) (i)
8) (v)
9) (iv)
10) (iv)
11) (ii)
12) (i)
13) (iv)
14) (v)
15) (iii)
16) (iii)
17) (iii)
18) (i)
19) (i)
