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.
2
18
12
13
1
15
9
19
17
11
7
15
3
16
(i)
1
(ii)
11
2
7
(iii)
15
(iv)
12
1
2
(v)
18
Question
2
2.
Find the median of all prime numbers between 10 and 100.
(i)
48
(ii)
49
(iii)
44
(iv)
47
(v)
46
Question
3
3.
Find the median of all the factors of 30.
(i)
9
2
(ii)
21
4
(iii)
13
2
(iv)
11
2
(v)
6
Question
4
4.
Find the median of first 10 whole numbers.
(i)
11
2
(ii)
7
2
(iii)
17
4
(iv)
9
2
(v)
5
Question
5
5.
Find the median of all the factors of 20.
(i)
17
4
(ii)
9
2
(iii)
7
2
(iv)
11
2
(v)
5
Question
6
6.
Find the median of the first 15 odd numbers.
(i)
17
(ii)
13
(iii)
15
(iv)
16
(v)
14
Question
7
7.
Find the median of the first 15 even numbers.
(i)
14
(ii)
18
(iii)
15
(iv)
16
(v)
17
Question
8
8.
The marks obtained by 15 students in a test are given below. Find their median marks.
45
48
30
2
12
28
50
18
31
9
31
45
45
38
42
(i)
30
(ii)
31
(iii)
33
(iv)
28
(v)
32
Question
9
9.
Heights of 12 students (in cm) are given below. Find the median height.
136
144
149
131
154
154
174
160
161
160
175
147
(i)
153
cm
(ii)
152
cm
(iii)
155
cm
(iv)
156
cm
(v)
154
cm
Question
10
10.
Heights of 14 plants (in cm) are given below. Find the median height.
53
54
91
59
82
80
75
80
84
66
58
71
77
55
(i)
73
cm
(ii)
72
cm
(iii)
75
cm
(iv)
71
cm
(v)
74
cm
Question
11
11.
Ages of 10 students (in years) are given below. Find the median age.
14
13
13
12
11
14
13
10
12
13
(i)
12
years
(ii)
15
years
(iii)
13
years
(iv)
11
years
(v)
14
years
Question
12
12.
Rainfall of 10 days (in mm) are given below. Find the median rainfall.
5
15
12
15
9
10
11
8
11
7
(i)
11
mm
(ii)
21
2
mm
(iii)
25
2
mm
(iv)
23
2
mm
Question
13
13.
Scores of 12 students are given below. Find the median score.
89
83
84
88
85
73
78
78
86
70
71
88
(i)
167
2
(ii)
169
2
(iii)
84
(iv)
171
2
Question
14
14.
Temperatures of 13 days (in °C) are given below. Find the median temperature.
25
33
30
34
31
25
26
25
28
25
29
26
28
(i)
30
°C
(ii)
26
°C
(iii)
27
°C
(iv)
29
°C
(v)
28
°C
Question
15
15.
Weights of 12 students (in kg) are given below. Find the median weight.
55
59
60
42
55
57
46
46
43
58
49
55
(i)
57
kg
(ii)
56
kg
(iii)
53
kg
(iv)
54
kg
(v)
55
kg
Question
16
16.
Daily wages of 12 labourers (in ₹) are given below. Find the median wage.
309
412
428
461
354
301
432
456
455
455
424
493
(i)
₹
431.00
(ii)
₹
429.00
(iii)
₹
428.00
(iv)
₹
430.00
(v)
₹
432.00
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
3
,
find the observations of the data
(i)
2
,
3
,
4
(ii)
6
,
3
,
8
(iii)
4
,
3
,
8
(iv)
3
,
3
,
6
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
18
and
12
respectively and
x
3
-
x
1
=
30
,
find
x
1
,
x
2
,
x
3
(i)
10
,
12
,
40
(ii)
8
,
12
,
38
(iii)
12
,
12
,
72
(iv)
6
,
12
,
36
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
27
and x +
31
and the median as
34
,
find the value of x.
(i)
5
(ii)
2
(iii)
4
(iv)
8
(v)
6
Assignment Key
1) (iv)
2) (iv)
3) (iv)
4) (iv)
5) (ii)
6) (iii)
7) (iv)
8) (ii)
9) (v)
10) (i)
11) (iii)
12) (ii)
13) (i)
14) (v)
15) (v)
16) (iv)
17) (i)
18) (iv)
19) (i)
