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)
71
(ii)
73
(iii)
70
(iv)
75
(v)
72
Question
2
2.
Find the median of all the factors of 10.
(i)
7
2
(ii)
9
2
(iii)
5
2
(iv)
4
(v)
13
4
Question
3
3.
Find the median of first 7 whole numbers.
(i)
2
(ii)
3
(iii)
1
(iv)
4
(v)
6
Question
4
4.
Find the median of all the factors of 40.
(i)
15
2
(ii)
11
2
(iii)
25
4
(iv)
7
(v)
13
2
Question
5
5.
Find the median of the first 15 odd numbers.
(i)
14
(ii)
15
(iii)
12
(iv)
17
(v)
16
Question
6
6.
Find the median of the first 15 even numbers.
(i)
14
(ii)
15
(iii)
18
(iv)
16
(v)
17
Question
7
7.
The marks obtained by 13 students in a test are given below. Find their median marks.
44
33
30
9
38
9
47
3
10
40
49
37
50
(i)
40
(ii)
37
(iii)
36
(iv)
38
(v)
34
Question
8
8.
Heights of 15 students (in cm) are given below. Find the median height.
155
127
155
172
148
131
145
129
140
160
144
144
125
127
126
(i)
143
cm
(ii)
145
cm
(iii)
146
cm
(iv)
144
cm
(v)
142
cm
Question
9
9.
Heights of 14 plants (in cm) are given below. Find the median height.
91
97
59
74
93
81
94
93
71
93
71
53
57
54
(i)
159
2
cm
(ii)
78
cm
(iii)
155
2
cm
(iv)
157
2
cm
Question
10
10.
Ages of 14 students (in years) are given below. Find the median age.
15
15
12
15
11
14
12
15
15
10
10
12
10
13
(i)
27
2
years
(ii)
29
2
years
(iii)
25
2
years
(iv)
13
years
Question
11
11.
Rainfall of 15 days (in mm) are given below. Find the median rainfall.
12
7
7
10
8
14
6
13
15
6
15
7
12
14
11
(i)
12
mm
(ii)
11
mm
(iii)
9
mm
(iv)
13
mm
(v)
10
mm
Question
12
12.
Scores of 11 students are given below. Find the median score.
84
70
80
85
90
89
73
90
87
86
71
(i)
84
(ii)
86
(iii)
87
(iv)
85
(v)
83
Question
13
13.
Temperatures of 14 days (in °C) are given below. Find the median temperature.
31
27
25
35
35
26
34
27
34
31
33
27
26
35
(i)
33
°C
(ii)
32
°C
(iii)
31
°C
(iv)
29
°C
(v)
30
°C
Question
14
14.
Weights of 11 students (in kg) are given below. Find the median weight.
41
46
60
59
49
54
58
47
47
52
48
(i)
49
kg
(ii)
48
kg
(iii)
51
kg
(iv)
47
kg
(v)
50
kg
Question
15
15.
Daily wages of 14 labourers (in ₹) are given below. Find the median wage.
394
388
368
319
313
478
449
459
500
471
468
463
304
497
(i)
₹
453.00
(ii)
₹
452.00
(iii)
₹
456.00
(iv)
₹
454.00
(v)
₹
455.00
Question
16
16.
Given an even number of random samples with the middle two samples as
x +
40
and x +
42
and the median as
45
,
find the value of x.
(i)
3
(ii)
6
(iii)
4
(iv)
1
(v)
5
Question
17
17.
The scores obtained by 7 students in a test are given below. Find the median.
19
16
11
13
15
8
3
(i)
3
(ii)
12
1
7
(iii)
16
(iv)
19
(v)
13
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
6
,
find the observations of the data
(i)
4
,
6
,
8
(ii)
8
,
6
,
16
(iii)
8
,
6
,
12
(iv)
5
,
6
,
10
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
54
and
36
respectively and
x
3
-
x
1
=
90
,
find
x
1
,
x
2
,
x
3
(i)
22
,
36
,
112
(ii)
20
,
36
,
110
(iii)
18
,
36
,
108
(iv)
36
,
36
,
216
Assignment Key
1) (v)
2) (i)
3) (ii)
4) (v)
5) (ii)
6) (iv)
7) (ii)
8) (iv)
9) (iii)
10) (iii)
11) (ii)
12) (iv)
13) (iii)
14) (i)
15) (iv)
16) (iii)
17) (v)
18) (i)
19) (iii)
