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 50 and 100.
(i)
70
(ii)
72
(iii)
74
(iv)
73
(v)
71
Question
2
2.
Find the median of all the factors of 10.
(i)
9
2
(ii)
4
(iii)
5
2
(iv)
7
2
(v)
13
4
Question
3
3.
Find the median of first 10 whole numbers.
(i)
17
4
(ii)
7
2
(iii)
5
(iv)
11
2
(v)
9
2
Question
4
4.
Find the median of all the factors of 30.
(i)
13
2
(ii)
11
2
(iii)
6
(iv)
21
4
(v)
9
2
Question
5
5.
Find the median of the first 10 odd numbers.
(i)
9
(ii)
7
(iii)
10
(iv)
11
(v)
12
Question
6
6.
Find the median of the first 10 even numbers.
(i)
11
(ii)
10
(iii)
14
(iv)
12
(v)
8
Question
7
7.
The marks obtained by 11 students in a test are given below. Find their median marks.
7
49
42
48
8
48
28
48
28
34
34
(i)
33
(ii)
35
(iii)
34
(iv)
31
(v)
36
Question
8
8.
Heights of 15 students (in cm) are given below. Find the median height.
137
131
152
138
149
163
174
129
162
175
159
150
164
134
170
(i)
151
cm
(ii)
153
cm
(iii)
150
cm
(iv)
154
cm
(v)
152
cm
Question
9
9.
Heights of 12 plants (in cm) are given below. Find the median height.
97
61
93
57
74
60
74
64
51
86
75
62
(i)
70
cm
(ii)
71
cm
(iii)
68
cm
(iv)
67
cm
(v)
69
cm
Question
10
10.
Ages of 10 students (in years) are given below. Find the median age.
11
12
11
15
11
13
13
12
11
14
(i)
14
years
(ii)
13
years
(iii)
11
years
(iv)
10
years
(v)
12
years
Question
11
11.
Rainfall of 13 days (in mm) are given below. Find the median rainfall.
5
10
15
13
15
7
13
5
15
9
9
9
11
(i)
9
mm
(ii)
10
mm
(iii)
8
mm
(iv)
11
mm
(v)
12
mm
Question
12
12.
Scores of 11 students are given below. Find the median score.
83
86
89
88
81
77
85
81
86
76
79
(i)
85
(ii)
81
(iii)
82
(iv)
84
(v)
83
Question
13
13.
Temperatures of 14 days (in °C) are given below. Find the median temperature.
25
31
33
31
33
33
27
31
35
28
28
33
34
25
(i)
32
°C
(ii)
33
°C
(iii)
31
°C
(iv)
29
°C
(v)
30
°C
Question
14
14.
Weights of 12 students (in kg) are given below. Find the median weight.
45
47
44
57
46
47
43
45
52
44
51
55
(i)
95
2
kg
(ii)
97
2
kg
(iii)
47
kg
(iv)
93
2
kg
Question
15
15.
Daily wages of 12 labourers (in ₹) are given below. Find the median wage.
431
450
317
422
478
404
309
392
312
456
413
355
(i)
₹
408.50
(ii)
₹
409.00
(iii)
₹
409.50
(iv)
₹
410.50
Question
16
16.
Given an even number of random samples with the middle two samples as
x +
22
and x +
36
and the median as
34
,
find the value of x.
(i)
7
(ii)
3
(iii)
5
(iv)
6
(v)
4
Question
17
17.
The scores obtained by 6 students in a test are given below. Find the median.
6
11
19
1
8
12
(i)
9
1
2
(ii)
19
(iii)
0
(iv)
1
(v)
18
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
9
,
find the observations of the data
(i)
6
,
9
,
12
(ii)
7
,
9
,
14
(iii)
12
,
9
,
24
(iv)
10
,
9
,
16
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
60
and
40
respectively and
x
3
-
x
1
=
100
,
find
x
1
,
x
2
,
x
3
(i)
20
,
40
,
120
(ii)
22
,
40
,
122
(iii)
24
,
40
,
124
(iv)
40
,
40
,
240
Assignment Key
1) (ii)
2) (iv)
3) (v)
4) (ii)
5) (iii)
6) (i)
7) (iii)
8) (v)
9) (v)
10) (v)
11) (ii)
12) (v)
13) (iii)
14) (iv)
15) (i)
16) (iii)
17) (i)
18) (i)
19) (i)
