EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Statistics
Grade : CBSE Grade IX
License : Non Commercial Use
Question
1
1.
Find the median of all prime numbers between 30 and 60.
(i)
43
(ii)
41
(iii)
46
(iv)
44
(v)
42
Question
2
2.
Find the median of all the factors of 10.
(i)
7
2
(ii)
5
2
(iii)
13
4
(iv)
9
2
(v)
4
Question
3
3.
Find the median of first 5 whole numbers.
(i)
1
(ii)
4
(iii)
2
(iv)
0
(v)
3
Question
4
4.
Find the median of all the factors of 20.
(i)
5
(ii)
9
2
(iii)
17
4
(iv)
11
2
(v)
7
2
Question
5
5.
Find the median of the first 20 odd numbers.
(i)
23
(ii)
21
(iii)
19
(iv)
20
(v)
18
Question
6
6.
Find the median of the first 10 even numbers.
(i)
11
(ii)
8
(iii)
10
(iv)
13
(v)
12
Question
7
7.
The marks obtained by 12 students in a test are given below. Find their median marks.
25
49
7
41
25
41
43
12
43
15
4
22
(i)
27
(ii)
24
(iii)
25
(iv)
23
(v)
26
Question
8
8.
Heights of 10 students (in cm) are given below. Find the median height.
138
174
135
169
136
147
161
157
152
132
(i)
299
2
cm
(ii)
301
2
cm
(iii)
303
2
cm
(iv)
150
cm
Question
9
9.
Heights of 11 plants (in cm) are given below. Find the median height.
79
64
66
98
80
93
84
52
69
59
66
(i)
67
cm
(ii)
68
cm
(iii)
69
cm
(iv)
71
cm
(v)
70
cm
Question
10
10.
Ages of 14 students (in years) are given below. Find the median age.
15
11
10
15
14
11
15
11
15
12
15
11
11
12
(i)
10
years
(ii)
13
years
(iii)
12
years
(iv)
11
years
(v)
14
years
Question
11
11.
Rainfall of 13 days (in mm) are given below. Find the median rainfall.
8
9
13
13
11
8
11
7
5
8
11
5
7
(i)
9
mm
(ii)
8
mm
(iii)
7
mm
(iv)
6
mm
(v)
10
mm
Question
12
12.
Scores of 10 students are given below. Find the median score.
78
73
71
88
88
72
86
84
88
86
(i)
83
(ii)
86
(iii)
85
(iv)
87
(v)
84
Question
13
13.
Temperatures of 12 days (in °C) are given below. Find the median temperature.
35
31
30
33
33
35
30
31
29
33
25
35
(i)
33
°C
(ii)
31
°C
(iii)
34
°C
(iv)
32
°C
(v)
30
°C
Question
14
14.
Weights of 13 students (in kg) are given below. Find the median weight.
60
56
51
60
58
60
47
56
40
51
55
40
46
(i)
57
kg
(ii)
53
kg
(iii)
54
kg
(iv)
56
kg
(v)
55
kg
Question
15
15.
Daily wages of 10 labourers (in ₹) are given below. Find the median wage.
463
456
485
364
440
378
396
362
411
354
(i)
₹
403.50
(ii)
₹
404.00
(iii)
₹
405.50
(iv)
₹
404.50
Question
16
16.
Given an even number of random samples with the middle two samples as
x +
20
and x +
26
and the median as
25
,
find the value of x.
(i)
2
(ii)
5
(iii)
1
(iv)
3
(v)
0
Question
17
17.
The scores obtained by 6 students in a test are given below. Find the median.
9
16
15
17
7
10
(i)
7
(ii)
12
1
2
(iii)
12
1
3
(iv)
17
(v)
10
Question
18
18.
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)
40
,
30
,
80
(iii)
21
,
30
,
42
(iv)
20
,
30
,
40
Question
19
19.
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
Assignment Key
1) (i)
2) (i)
3) (iii)
4) (ii)
5) (iv)
6) (i)
7) (iii)
8) (i)
9) (iii)
10) (iii)
11) (ii)
12) (iii)
13) (iv)
14) (v)
15) (i)
16) (i)
17) (ii)
18) (iv)
19) (iv)
