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 60.
(i)
56
(ii)
58
(iii)
53
(iv)
57
(v)
55
Question
2
2.
Find the median of all the factors of 10.
(i)
5
2
(ii)
9
2
(iii)
4
(iv)
13
4
(v)
7
2
Question
3
3.
Find the median of first 6 whole numbers.
(i)
9
4
(ii)
7
2
(iii)
3
(iv)
5
2
(v)
3
2
Question
4
4.
Find the median of all the factors of 20.
(i)
7
2
(ii)
17
4
(iii)
11
2
(iv)
9
2
(v)
5
Question
5
5.
Find the median of the first 15 odd numbers.
(i)
14
(ii)
16
(iii)
13
(iv)
17
(v)
15
Question
6
6.
Find the median of the first 15 even numbers.
(i)
16
(ii)
15
(iii)
18
(iv)
14
(v)
17
Question
7
7.
The marks obtained by 12 students in a test are given below. Find their median marks.
50
43
27
16
8
26
14
14
42
3
27
44
(i)
55
2
(ii)
51
2
(iii)
27
(iv)
53
2
(v)
105
4
Question
8
8.
Heights of 13 students (in cm) are given below. Find the median height.
128
173
137
156
135
170
160
146
128
147
140
129
170
(i)
144
cm
(ii)
145
cm
(iii)
148
cm
(iv)
147
cm
(v)
146
cm
Question
9
9.
Heights of 12 plants (in cm) are given below. Find the median height.
75
98
51
53
74
53
55
58
89
95
88
51
(i)
68
cm
(ii)
67
cm
(iii)
64
cm
(iv)
66
cm
(v)
65
cm
Question
10
10.
Ages of 12 students (in years) are given below. Find the median age.
14
14
13
15
11
12
12
13
13
14
10
11
(i)
14
years
(ii)
15
years
(iii)
13
years
(iv)
11
years
(v)
12
years
Question
11
11.
Rainfall of 12 days (in mm) are given below. Find the median rainfall.
13
6
11
6
7
13
10
12
9
5
14
7
(i)
21
2
mm
(ii)
23
2
mm
(iii)
19
2
mm
(iv)
10
mm
Question
12
12.
Scores of 12 students are given below. Find the median score.
87
78
83
74
71
70
89
80
89
70
78
82
(i)
81
(ii)
78
(iii)
77
(iv)
79
(v)
80
Question
13
13.
Temperatures of 12 days (in °C) are given below. Find the median temperature.
25
35
32
27
31
32
30
31
34
32
29
33
(i)
63
2
°C
(ii)
65
2
°C
(iii)
67
2
°C
(iv)
32
°C
Question
14
14.
Weights of 12 students (in kg) are given below. Find the median weight.
45
56
56
49
46
59
43
51
60
60
60
56
(i)
55
kg
(ii)
57
kg
(iii)
54
kg
(iv)
56
kg
(v)
58
kg
Question
15
15.
Daily wages of 10 labourers (in ₹) are given below. Find the median wage.
493
455
440
314
414
332
320
421
338
322
(i)
₹
378.00
(ii)
₹
376.00
(iii)
₹
375.00
(iv)
₹
374.00
(v)
₹
377.00
Question
16
16.
Given an even number of random samples with the middle two samples as
x +
10
and x +
17
and the median as
21
1
2
,
find the value of x.
(i)
5
(ii)
7
(iii)
9
(iv)
10
(v)
8
Question
17
17.
The scores obtained by 10 students in a test are given below. Find the median.
19
12
17
20
3
1
4
14
16
10
(i)
11
3
5
(ii)
1
(iii)
13
(iv)
20
(v)
19
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
18
,
find the observations of the data
(i)
24
,
18
,
48
(ii)
12
,
18
,
24
(iii)
16
,
18
,
28
(iv)
13
,
18
,
26
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
18
and
12
respectively and
x
3
-
x
1
=
30
,
find
x
1
,
x
2
,
x
3
(i)
8
,
12
,
38
(ii)
6
,
12
,
36
(iii)
12
,
12
,
72
(iv)
10
,
12
,
40
Assignment Key
1) (i)
2) (v)
3) (iv)
4) (iv)
5) (v)
6) (i)
7) (iv)
8) (v)
9) (iv)
10) (iii)
11) (iii)
12) (iv)
13) (i)
14) (iv)
15) (ii)
16) (v)
17) (iii)
18) (ii)
19) (ii)
