EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Statistics
Grade : SSC Grade IX
License : Non Commercial Use
Question
1
1.
The scores obtained by 7 students in a test are given below. Find the median.
10
2
9
18
18
16
12
(i)
16
(ii)
18
(iii)
12
1
7
(iv)
12
(v)
2
Question
2
2.
The marks obtained by 14 students in a test are given below. Find their median marks.
15
33
5
43
33
42
42
37
31
35
48
44
8
29
(i)
33
(ii)
37
(iii)
35
(iv)
34
(v)
32
Question
3
3.
Heights of 15 students (in cm) are given below. Find the median height.
151
164
157
144
139
158
127
130
152
139
126
151
173
149
155
(i)
149
cm
(ii)
152
cm
(iii)
153
cm
(iv)
151
cm
(v)
150
cm
Question
4
4.
Heights of 10 plants (in cm) are given below. Find the median height.
65
99
65
92
67
52
88
90
95
96
(i)
88
cm
(ii)
89
cm
(iii)
90
cm
(iv)
91
cm
(v)
87
cm
Question
5
5.
Ages of 15 students (in years) are given below. Find the median age.
11
13
13
11
12
15
15
13
14
11
13
15
12
11
10
(i)
12
years
(ii)
13
years
(iii)
15
years
(iv)
14
years
(v)
11
years
Question
6
6.
Rainfall of 12 days (in mm) are given below. Find the median rainfall.
11
10
7
5
11
11
14
9
15
13
6
5
(i)
25
2
mm
(ii)
11
mm
(iii)
23
2
mm
(iv)
21
2
mm
Question
7
7.
Scores of 11 students are given below. Find the median score.
90
80
70
83
89
73
75
81
76
88
88
(i)
79
(ii)
83
(iii)
82
(iv)
81
(v)
80
Question
8
8.
Temperatures of 13 days (in °C) are given below. Find the median temperature.
31
30
31
34
35
35
25
34
29
31
29
32
28
(i)
32
°C
(ii)
33
°C
(iii)
29
°C
(iv)
31
°C
(v)
30
°C
Question
9
9.
Weights of 10 students (in kg) are given below. Find the median weight.
46
52
47
53
50
52
50
49
60
54
(i)
51
kg
(ii)
52
kg
(iii)
49
kg
(iv)
53
kg
(v)
50
kg
Question
10
10.
Daily wages of 13 labourers (in ₹) are given below. Find the median wage.
373
452
476
370
486
375
307
421
330
405
413
484
366
(i)
₹
403.00
(ii)
₹
406.00
(iii)
₹
405.00
(iv)
₹
404.00
(v)
₹
407.00
Question
11
11.
Find the median of all prime numbers between 10 and 100.
(i)
48
(ii)
47
(iii)
50
(iv)
45
(v)
46
Question
12
12.
Find the median of all the factors of 40.
(i)
25
4
(ii)
11
2
(iii)
13
2
(iv)
7
(v)
15
2
Question
13
13.
Find the median of first 10 whole numbers.
(i)
9
2
(ii)
5
(iii)
7
2
(iv)
17
4
(v)
11
2
Question
14
14.
Find the median of all the factors of 10.
(i)
9
2
(ii)
7
2
(iii)
5
2
(iv)
4
(v)
13
4
Question
15
15.
Find the median of the first 10 odd numbers.
(i)
9
(ii)
10
(iii)
11
(iv)
12
(v)
8
Question
16
16.
Find the median of the first 15 even numbers.
(i)
16
(ii)
18
(iii)
17
(iv)
15
(v)
13
Question
17
17.
Given an even number of random samples with the middle two samples as
x +
21
and x +
24
and the median as
32
1
2
,
find the value of x.
(i)
10
(ii)
9
(iii)
13
(iv)
7
(v)
11
Question
18
18.
Given an even number of random samples with the middle two samples as
x +
35
and x +
37
and the median as
40
,
find the value of x.
(i)
3
(ii)
4
(iii)
5
(iv)
7
(v)
2
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)
40
,
30
,
80
(ii)
24
,
30
,
44
(iii)
20
,
30
,
40
(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
54
and
36
respectively and
x
3
-
x
1
=
90
,
find
x
1
,
x
2
,
x
3
(i)
20
,
36
,
110
(ii)
22
,
36
,
112
(iii)
36
,
36
,
216
(iv)
18
,
36
,
108
Assignment Key
1) (iv)
2) (iv)
3) (iv)
4) (ii)
5) (ii)
6) (iv)
7) (iv)
8) (iv)
9) (i)
10) (iii)
11) (ii)
12) (iii)
13) (i)
14) (ii)
15) (ii)
16) (i)
17) (i)
18) (ii)
19) (iii)
20) (iv)
