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.
7
8
10
5
12
10
12
12
15
(i)
10
(ii)
5
(iii)
15
(iv)
10
1
9
(v)
12
Question
2
2.
The marks obtained by 15 students in a test are given below. Find their median marks.
22
27
4
2
26
5
15
10
15
23
26
21
31
42
48
(i)
25
(ii)
21
(iii)
23
(iv)
22
(v)
19
Question
3
3.
Heights of 15 students (in cm) are given below. Find the median height.
149
132
168
166
175
143
128
126
166
129
143
160
159
127
169
(i)
151
cm
(ii)
149
cm
(iii)
148
cm
(iv)
150
cm
(v)
147
cm
Question
4
4.
Heights of 12 plants (in cm) are given below. Find the median height.
60
53
85
60
53
53
69
74
86
63
63
76
(i)
64
cm
(ii)
62
cm
(iii)
65
cm
(iv)
63
cm
(v)
61
cm
Question
5
5.
Ages of 15 students (in years) are given below. Find the median age.
10
15
13
14
12
15
13
13
10
15
14
14
11
12
10
(i)
14
years
(ii)
13
years
(iii)
11
years
(iv)
12
years
(v)
15
years
Question
6
6.
Rainfall of 10 days (in mm) are given below. Find the median rainfall.
6
6
14
9
12
9
15
10
5
14
(i)
21
2
mm
(ii)
19
2
mm
(iii)
10
mm
(iv)
23
2
mm
Question
7
7.
Scores of 14 students are given below. Find the median score.
74
73
74
73
70
90
89
74
77
85
74
79
84
83
(i)
153
2
(ii)
151
2
(iii)
155
2
(iv)
76
Question
8
8.
Temperatures of 13 days (in °C) are given below. Find the median temperature.
29
28
26
34
33
32
25
25
27
30
28
28
31
(i)
26
°C
(ii)
28
°C
(iii)
27
°C
(iv)
30
°C
(v)
29
°C
Question
9
9.
Weights of 10 students (in kg) are given below. Find the median weight.
47
48
50
60
44
52
42
50
44
51
(i)
51
kg
(ii)
48
kg
(iii)
50
kg
(iv)
47
kg
(v)
49
kg
Question
10
10.
Daily wages of 11 labourers (in ₹) are given below. Find the median wage.
380
458
401
368
302
455
471
415
452
442
345
(i)
₹
414.00
(ii)
₹
413.00
(iii)
₹
416.00
(iv)
₹
415.00
(v)
₹
417.00
Question
11
11.
Find the median of all prime numbers between 20 and 90.
(i)
57
(ii)
55
(iii)
54
(iv)
56
(v)
59
Question
12
12.
Find the median of all the factors of 10.
(i)
5
2
(ii)
9
2
(iii)
7
2
(iv)
13
4
(v)
4
Question
13
13.
Find the median of first 5 whole numbers.
(i)
0
(ii)
4
(iii)
2
(iv)
3
(v)
1
Question
14
14.
Find the median of all the factors of 10.
(i)
13
4
(ii)
7
2
(iii)
5
2
(iv)
4
(v)
9
2
Question
15
15.
Find the median of the first 15 odd numbers.
(i)
16
(ii)
13
(iii)
18
(iv)
14
(v)
15
Question
16
16.
Find the median of the first 20 even numbers.
(i)
22
(ii)
18
(iii)
23
(iv)
21
(v)
20
Question
17
17.
Given an even number of random samples with the middle two samples as
x +
13
and x +
15
and the median as
20
,
find the value of x.
(i)
8
(ii)
6
(iii)
3
(iv)
7
(v)
5
Question
18
18.
Given an even number of random samples with the middle two samples as
x +
21
and x +
26
and the median as
29
1
2
,
find the value of x.
(i)
5
(ii)
6
(iii)
7
(iv)
3
(v)
8
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
6
,
find the observations of the data
(i)
8
,
6
,
12
(ii)
5
,
6
,
10
(iii)
4
,
6
,
8
(iv)
8
,
6
,
16
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
12
and
8
respectively and
x
3
-
x
1
=
20
,
find
x
1
,
x
2
,
x
3
(i)
4
,
8
,
24
(ii)
6
,
8
,
26
(iii)
8
,
8
,
28
(iv)
8
,
8
,
48
Assignment Key
1) (i)
2) (iv)
3) (ii)
4) (iv)
5) (ii)
6) (ii)
7) (ii)
8) (ii)
9) (v)
10) (iv)
11) (iv)
12) (iii)
13) (iii)
14) (ii)
15) (v)
16) (iv)
17) (ii)
18) (ii)
19) (iii)
20) (i)
