EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Statistics
Grade : SSC Grade IX
License : Non Commercial Use
Question
1
1.
The scores obtained by 9 students in a test are given below. Find the median.
11
4
18
1
8
14
11
16
14
(i)
18
(ii)
11
(iii)
1
(iv)
17
(v)
10
7
9
Question
2
2.
The marks obtained by 15 students in a test are given below. Find their median marks.
29
21
24
21
47
44
24
9
11
38
17
5
44
48
33
(i)
24
(ii)
22
(iii)
27
(iv)
25
(v)
23
Question
3
3.
Heights of 13 students (in cm) are given below. Find the median height.
150
139
130
149
147
164
156
163
153
173
163
153
138
(i)
151
cm
(ii)
153
cm
(iii)
155
cm
(iv)
154
cm
(v)
152
cm
Question
4
4.
Heights of 13 plants (in cm) are given below. Find the median height.
80
93
50
85
80
59
60
72
88
90
81
66
92
(i)
78
cm
(ii)
81
cm
(iii)
82
cm
(iv)
79
cm
(v)
80
cm
Question
5
5.
Ages of 11 students (in years) are given below. Find the median age.
14
15
12
10
10
13
12
12
10
13
11
(i)
10
years
(ii)
14
years
(iii)
13
years
(iv)
11
years
(v)
12
years
Question
6
6.
Rainfall of 10 days (in mm) are given below. Find the median rainfall.
9
7
7
10
11
13
11
9
8
9
(i)
7
mm
(ii)
10
mm
(iii)
9
mm
(iv)
11
mm
(v)
8
mm
Question
7
7.
Scores of 15 students are given below. Find the median score.
78
88
72
78
84
71
76
88
79
70
86
82
71
75
89
(i)
80
(ii)
78
(iii)
76
(iv)
77
(v)
79
Question
8
8.
Temperatures of 10 days (in °C) are given below. Find the median temperature.
30
27
31
35
26
31
25
25
31
30
(i)
29
°C
(ii)
30
°C
(iii)
28
°C
(iv)
31
°C
(v)
32
°C
Question
9
9.
Weights of 13 students (in kg) are given below. Find the median weight.
55
53
46
52
45
52
54
53
59
54
51
51
56
(i)
55
kg
(ii)
54
kg
(iii)
52
kg
(iv)
53
kg
(v)
51
kg
Question
10
10.
Daily wages of 12 labourers (in ₹) are given below. Find the median wage.
460
379
444
313
400
339
468
416
409
461
305
373
(i)
₹
405.00
(ii)
₹
404.50
(iii)
₹
405.50
(iv)
₹
406.50
Question
11
11.
Find the median of all prime numbers between 30 and 70.
(i)
46
(ii)
50
(iii)
44
(iv)
47
(v)
48
Question
12
12.
Find the median of all the factors of 10.
(i)
5
2
(ii)
13
4
(iii)
9
2
(iv)
4
(v)
7
2
Question
13
13.
Find the median of first 6 whole numbers.
(i)
3
(ii)
9
4
(iii)
3
2
(iv)
7
2
(v)
5
2
Question
14
14.
Find the median of all the factors of 10.
(i)
4
(ii)
5
2
(iii)
9
2
(iv)
13
4
(v)
7
2
Question
15
15.
Find the median of the first 20 odd numbers.
(i)
20
(ii)
23
(iii)
17
(iv)
19
(v)
21
Question
16
16.
Find the median of the first 15 even numbers.
(i)
13
(ii)
19
(iii)
15
(iv)
17
(v)
16
Question
17
17.
Given an even number of random samples with the middle two samples as
x +
24
and x +
27
and the median as
29
1
2
,
find the value of x.
(i)
6
(ii)
2
(iii)
5
(iv)
4
(v)
3
Question
18
18.
Given an even number of random samples with the middle two samples as
x +
18
and x +
19
and the median as
26
1
2
,
find the value of x.
(i)
8
(ii)
5
(iii)
7
(iv)
9
(v)
11
Question
19
19.
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)
20
,
30
,
40
(ii)
24
,
30
,
44
(iii)
40
,
30
,
80
(iv)
21
,
30
,
42
Question
20
20.
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)
16
,
32
,
96
(ii)
20
,
32
,
100
(iii)
32
,
32
,
192
(iv)
18
,
32
,
98
Assignment Key
1) (ii)
2) (i)
3) (ii)
4) (v)
5) (v)
6) (iii)
7) (ii)
8) (ii)
9) (iv)
10) (ii)
11) (iv)
12) (v)
13) (v)
14) (v)
15) (i)
16) (v)
17) (iv)
18) (i)
19) (i)
20) (i)
