EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Statistics
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
The scores obtained by 11 students in a test are given below. Find the median.
17
13
3
4
14
6
7
9
1
8
9
(i)
17
(ii)
8
3
11
(iii)
9
(iv)
8
(v)
16
Question
2
2.
Find the median of all prime numbers between 40 and 60.
(i)
48
(ii)
50
(iii)
44
(iv)
47
(v)
46
Question
3
3.
Find the median of all the factors of 40.
(i)
15
2
(ii)
11
2
(iii)
25
4
(iv)
13
2
(v)
7
Question
4
4.
Find the median of first 5 whole numbers.
(i)
-1
(ii)
2
(iii)
4
(iv)
1
(v)
3
Question
5
5.
Find the median of all the factors of 30.
(i)
9
2
(ii)
11
2
(iii)
21
4
(iv)
6
(v)
13
2
Question
6
6.
Find the median of the first 15 odd numbers.
(i)
16
(ii)
14
(iii)
15
(iv)
12
(v)
17
Question
7
7.
Find the median of the first 15 even numbers.
(i)
19
(ii)
15
(iii)
16
(iv)
17
(v)
13
Question
8
8.
The marks obtained by 11 students in a test are given below. Find their median marks.
19
6
11
2
46
49
28
26
27
50
16
(i)
25
(ii)
27
(iii)
26
(iv)
23
(v)
29
Question
9
9.
Heights of 14 students (in cm) are given below. Find the median height.
149
129
141
140
164
131
152
135
143
165
138
175
128
127
(i)
283
2
cm
(ii)
141
cm
(iii)
281
2
cm
(iv)
285
2
cm
Question
10
10.
Heights of 14 plants (in cm) are given below. Find the median height.
84
85
52
87
89
77
65
66
91
76
92
58
86
51
(i)
161
2
cm
(ii)
81
cm
(iii)
165
2
cm
(iv)
163
2
cm
Question
11
11.
Ages of 14 students (in years) are given below. Find the median age.
14
14
14
10
12
13
14
11
11
12
12
11
11
14
(i)
12
years
(ii)
13
years
(iii)
10
years
(iv)
11
years
(v)
14
years
Question
12
12.
Rainfall of 15 days (in mm) are given below. Find the median rainfall.
6
8
15
10
15
10
9
15
11
5
14
14
15
12
13
(i)
14
mm
(ii)
12
mm
(iii)
13
mm
(iv)
10
mm
(v)
11
mm
Question
13
13.
Scores of 13 students are given below. Find the median score.
86
79
70
76
71
73
90
90
76
86
72
83
86
(i)
81
(ii)
77
(iii)
78
(iv)
79
(v)
80
Question
14
14.
Temperatures of 11 days (in °C) are given below. Find the median temperature.
34
35
32
30
27
27
31
33
27
26
34
(i)
29
°C
(ii)
30
°C
(iii)
33
°C
(iv)
32
°C
(v)
31
°C
Question
15
15.
Weights of 14 students (in kg) are given below. Find the median weight.
48
45
46
55
41
46
41
49
48
48
54
53
56
40
(i)
47
kg
(ii)
48
kg
(iii)
50
kg
(iv)
49
kg
(v)
46
kg
Question
16
16.
Daily wages of 11 labourers (in ₹) are given below. Find the median wage.
412
337
436
412
319
429
313
448
373
307
364
(i)
₹
374.00
(ii)
₹
371.00
(iii)
₹
372.00
(iv)
₹
375.00
(v)
₹
373.00
Question
17
17.
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
18
18.
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
42
and
28
respectively and
x
3
-
x
1
=
70
,
find
x
1
,
x
2
,
x
3
(i)
16
,
28
,
86
(ii)
28
,
28
,
168
(iii)
18
,
28
,
88
(iv)
14
,
28
,
84
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
24
and x +
29
and the median as
30
1
2
,
find the value of x.
(i)
7
(ii)
3
(iii)
5
(iv)
4
(v)
1
Assignment Key
1) (iv)
2) (iv)
3) (iv)
4) (ii)
5) (ii)
6) (iii)
7) (iii)
8) (iii)
9) (iii)
10) (i)
11) (i)
12) (ii)
13) (iv)
14) (v)
15) (ii)
16) (v)
17) (i)
18) (iv)
19) (iv)
