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 90.
(i)
62
(ii)
59
(iii)
58
(iv)
60
(v)
61
Question
2
2.
Find the median of all the factors of 10.
(i)
9
2
(ii)
5
2
(iii)
4
(iv)
7
2
(v)
13
4
Question
3
3.
Find the median of first 5 whole numbers.
(i)
4
(ii)
1
(iii)
-1
(iv)
3
(v)
2
Question
4
4.
Find the median of all the factors of 20.
(i)
11
2
(ii)
17
4
(iii)
9
2
(iv)
5
(v)
7
2
Question
5
5.
Find the median of the first 10 odd numbers.
(i)
12
(ii)
8
(iii)
10
(iv)
11
(v)
9
Question
6
6.
Find the median of the first 10 even numbers.
(i)
13
(ii)
8
(iii)
12
(iv)
11
(v)
10
Question
7
7.
The marks obtained by 14 students in a test are given below. Find their median marks.
2
11
38
33
46
7
25
49
33
32
44
27
10
15
(i)
57
2
(ii)
30
(iii)
117
4
(iv)
59
2
(v)
61
2
Question
8
8.
Heights of 13 students (in cm) are given below. Find the median height.
127
173
170
157
169
144
160
168
126
163
167
164
157
(i)
163
cm
(ii)
164
cm
(iii)
161
cm
(iv)
165
cm
(v)
162
cm
Question
9
9.
Heights of 11 plants (in cm) are given below. Find the median height.
60
98
76
67
62
93
84
99
92
66
92
(i)
83
cm
(ii)
84
cm
(iii)
85
cm
(iv)
86
cm
(v)
82
cm
Question
10
10.
Ages of 15 students (in years) are given below. Find the median age.
12
13
15
14
15
11
14
11
13
10
14
10
10
12
14
(i)
14
years
(ii)
11
years
(iii)
13
years
(iv)
15
years
(v)
12
years
Question
11
11.
Rainfall of 10 days (in mm) are given below. Find the median rainfall.
5
11
11
7
13
7
5
14
13
10
(i)
21
2
mm
(ii)
25
2
mm
(iii)
23
2
mm
(iv)
11
mm
Question
12
12.
Scores of 13 students are given below. Find the median score.
74
89
76
85
84
78
89
87
72
88
85
72
72
(i)
82
(ii)
86
(iii)
83
(iv)
85
(v)
84
Question
13
13.
Temperatures of 14 days (in °C) are given below. Find the median temperature.
25
27
34
33
32
31
26
26
30
29
33
27
35
34
(i)
31
°C
(ii)
63
2
°C
(iii)
65
2
°C
(iv)
61
2
°C
Question
14
14.
Weights of 14 students (in kg) are given below. Find the median weight.
42
48
55
53
40
40
49
56
56
55
56
53
56
43
(i)
54
kg
(ii)
53
kg
(iii)
51
kg
(iv)
55
kg
(v)
52
kg
Question
15
15.
Daily wages of 15 labourers (in ₹) are given below. Find the median wage.
422
362
385
468
338
339
461
309
357
481
378
350
432
325
487
(i)
₹
380.00
(ii)
₹
376.00
(iii)
₹
379.00
(iv)
₹
378.00
(v)
₹
377.00
Question
16
16.
Given an even number of random samples with the middle two samples as
x +
31
and x +
31
and the median as
41
,
find the value of x.
(i)
9
(ii)
8
(iii)
13
(iv)
11
(v)
10
Question
17
17.
The scores obtained by 9 students in a test are given below. Find the median.
11
12
10
11
7
18
4
13
4
(i)
11
(ii)
14
(iii)
18
(iv)
10
(v)
4
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
15
,
find the observations of the data
(i)
14
,
15
,
24
(ii)
10
,
15
,
20
(iii)
11
,
15
,
22
(iv)
20
,
15
,
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
48
and
32
respectively and
x
3
-
x
1
=
80
,
find
x
1
,
x
2
,
x
3
(i)
18
,
32
,
98
(ii)
20
,
32
,
100
(iii)
32
,
32
,
192
(iv)
16
,
32
,
96
Assignment Key
1) (iv)
2) (iv)
3) (v)
4) (iii)
5) (iii)
6) (iv)
7) (iv)
8) (i)
9) (ii)
10) (iii)
11) (i)
12) (v)
13) (iv)
14) (ii)
15) (iv)
16) (v)
17) (i)
18) (ii)
19) (iv)
