EduSahara™ Assignment
Name : Median of Grouped Data
Chapter : Median, Quartiles and Mode
Grade : ICSE Grade X
License : Non Commercial Use
Question
1
1.
Heights of 30 students are given below. Find the median.
Height (in cm)
125
128
132
136
140
146
148
162
165
169
171
No. of students
1
2
5
1
1
2
9
2
2
2
3
(i)
148
cm
(ii)
146
cm
(iii)
147
cm
(iv)
150
cm
(v)
149
cm
Question
2
2.
Heights of 25 plants are given below. Find the median.
Height (in cm)
69
74
76
77
79
84
85
95
96
99
No. of plants
4
2
1
5
3
3
3
1
2
1
(i)
77
cm
(ii)
81
cm
(iii)
80
cm
(iv)
78
cm
(v)
79
cm
Question
3
3.
Ages of 15 students are given below. Find the median.
Age (in years)
10
11
12
14
15
No. of students
2
2
4
1
6
(i)
10
years
(ii)
12
years
(iii)
11
years
(iv)
13
years
(v)
14
years
Question
4
4.
Scores of 30 students are given below. Find the median.
Score
72
73
76
77
79
82
83
88
No. of students
4
5
1
6
3
3
5
3
(i)
77
(ii)
76
(iii)
79
(iv)
75
(v)
78
Question
5
5.
Rainfall of 25 days are given below. Find the median.
Rainfall (in mm)
5
6
7
9
10
11
12
13
15
No. of days
3
3
3
1
5
4
3
1
2
(i)
12
mm
(ii)
8
mm
(iii)
9
mm
(iv)
10
mm
(v)
11
mm
Question
6
6.
Temperatures of 30 days are given below. Find the median.
Temperature (in degree C)
25
27
28
29
30
31
32
34
35
No. of days
3
4
2
6
3
4
1
2
5
(i)
59
2
°C
(ii)
61
2
°C
(iii)
63
2
°C
(iv)
30
°C
Question
7
7.
Weights of 25 students are given below. Find the median.
Weight (in kg)
42
44
49
54
55
59
60
No. of students
1
6
3
2
6
4
3
(i)
53
kg
(ii)
57
kg
(iii)
54
kg
(iv)
56
kg
(v)
55
kg
Question
8
8.
Wages of 25 labourers are given below. Find the median.
Wage (in rupees)
320
404
407
454
460
469
486
497
No. of labourers
4
4
6
5
2
1
1
2
(i)
₹
406.00
(ii)
₹
407.00
(iii)
₹
408.00
(iv)
₹
409.00
(v)
₹
405.00
Question
9
9.
The histogram given below represents the marks obtained by some candidates in an examination.
Using data in the diagram, calculate the
median
marks.
(i)
58.4
(ii)
55.4
(iii)
56.4
(iv)
54.4
(v)
57.4
Question
10
10.
Identify the frequency distribution table for the given '
median
' ogive.
(i)
Class-Interval
12 - 20
21 - 29
30 - 38
39 - 47
48 - 56
57 - 65
66 - 74
Frequency
3
11
15
5
13
20
10
(ii)
Class-Interval
12 - 20
21 - 29
30 - 38
39 - 47
48 - 56
57 - 65
66 - 74
Frequency
11
2
20
12
18
15
13
(iii)
Class-Interval
12 - 20
21 - 29
30 - 38
39 - 47
48 - 56
57 - 65
66 - 74
Frequency
4
4
14
8
10
16
14
(iv)
Class-Interval
12 - 20
21 - 29
30 - 38
39 - 47
48 - 56
57 - 65
66 - 74
Frequency
4
20
2
7
6
8
1
(v)
Class-Interval
12 - 20
21 - 29
30 - 38
39 - 47
48 - 56
57 - 65
66 - 74
Frequency
5
4
6
5
12
5
3
Question
11
11.
Identify the frequency distribution table for the given '
median
' ogive.
(i)
Class-Interval
10 - 18
18 - 26
26 - 34
34 - 42
42 - 50
50 - 58
Frequency
12
18
10
5
17
11
(ii)
Class-Interval
10 - 18
18 - 26
26 - 34
34 - 42
42 - 50
50 - 58
Frequency
8
5
10
17
18
14
(iii)
Class-Interval
10 - 18
18 - 26
26 - 34
34 - 42
42 - 50
50 - 58
Frequency
12
10
7
12
11
13
(iv)
Class-Interval
10 - 18
18 - 26
26 - 34
34 - 42
42 - 50
50 - 58
Frequency
17
10
5
11
13
19
(v)
Class-Interval
10 - 18
18 - 26
26 - 34
34 - 42
42 - 50
50 - 58
Frequency
6
7
3
10
6
9
Assignment Key
1) (i)
2) (v)
3) (ii)
4) (i)
5) (iv)
6) (i)
7) (v)
8) (ii)
9) (iii)
10) (v)
11) (v)
