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Class VI
Class VII
Class VIII
Class IX
Class X
ICSE Grade IX - Frequency Distribution
Question
1
1.
The class size used in the below table is
Class-Interval
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
85 - 90
Frequency
26
2
26
2
9
10
14
20
3
4
5
8
6
Question
2
2.
Find the cumulative frequency of class
62
-
67
.
Class-Interval
37 - 42
42 - 47
47 - 52
52 - 57
57 - 62
62 - 67
Frequency
17
6
17
23
25
5
92
91
93
94
95
Question
3
3.
Identify the cumulative frequency of the given grouped data.
class interval
29 - 35
36 - 42
43 - 49
50 - 56
57 - 63
frequency
8
12
24
22
15
class interval
Cumulative Frequency
29 - 35
8
36 - 42
32
43 - 49
44
50 - 56
66
57 - 63
81
class interval
Cumulative Frequency
29 - 35
8
36 - 42
23
43 - 49
47
50 - 56
69
57 - 63
81
class interval
Cumulative Frequency
29 - 35
8
36 - 42
20
43 - 49
44
50 - 56
66
57 - 63
81
class interval
Cumulative Frequency
29 - 35
8
36 - 42
18
43 - 49
42
50 - 56
64
57 - 63
79
class interval
Cumulative Frequency
29 - 35
8
36 - 42
20
43 - 49
47
50 - 56
69
57 - 63
84
Question
4
4.
The sale of shirts of various sizes at a shop on a particular day is given below. Identify the frequency distribution table for the given data.
31
20
37
40
23
28
38
22
27
35
25
23
38
34
26
27
37
40
34
26
20
26
Size
20
22
23
25
26
27
28
31
34
35
37
38
40
No. of Shirts
1
2
2
1
3
2
1
1
2
1
2
2
2
Size
25
26
27
28
29
30
31
32
33
35
39
40
No. of Shirts
2
1
2
2
1
1
2
4
1
2
1
3
Size
20
21
24
25
27
28
29
30
31
32
34
35
36
39
40
No. of Shirts
3
2
1
1
2
1
2
1
2
2
1
1
1
1
1
Size
20
22
23
25
26
27
28
31
34
35
37
38
40
No. of Shirts
2
1
3
1
2
2
1
1
2
1
2
2
2
Size
20
22
23
25
26
27
28
31
34
35
37
38
40
No. of Shirts
2
1
2
1
3
2
1
1
2
1
2
2
2
Question
5
5.
Which of the following are continuous variables?
a)
Heights of children in a class
b)
Marks obtained by student in a particular subject
c)
Number of players in a team
d)
Weights of persons in a group
e)
Number of members in a family
{c,d}
{a,d}
{c,d,a}
{e,b,a}
{b,a}
Question
6
6.
During the medical check-up of 55 students of a class, their weights in kgs are recorded as follows.
Identify the number of students whose weight is more than 79 kg
Class-Interval
34 - 43
43 - 52
52 - 61
61 - 70
70 - 79
79 - 88
Frequency
11
7
11
5
9
12
11
13
9
14
12
Question
7
7.
Following are the ages (in years) of patients getting medical treatment in a hospital. Identify the cumulative frequency of the given grouped data.
Age (in years)
10 - 20
20 - 30
30 - 40
40 - 50
50 - 60
60 - 70
No. of Patients
32
71
75
49
48
55
Age (in years)
Cumulative Frequency
10 - 20
32
20 - 30
103
30 - 40
174
40 - 50
223
50 - 60
271
60 - 70
326
Age (in years)
Cumulative Frequency
10 - 20
32
20 - 30
107
30 - 40
178
40 - 50
227
50 - 60
275
60 - 70
330
Age (in years)
Cumulative Frequency
10 - 20
32
20 - 30
87
30 - 40
162
40 - 50
211
50 - 60
259
60 - 70
330
Age (in years)
Cumulative Frequency
10 - 20
32
20 - 30
103
30 - 40
178
40 - 50
222
50 - 60
270
60 - 70
325
Age (in years)
Cumulative Frequency
10 - 20
32
20 - 30
103
30 - 40
178
40 - 50
227
50 - 60
275
60 - 70
330
Question
8
8.
Given table in inclusive form, convert it into exclusive form.
Class-Interval
17 - 22
23 - 28
29 - 34
35 - 40
41 - 46
Frequency
45
22
13
33
22
Class-Interval
16.5 - 21.5
22.5 - 27.5
28.5 - 33.5
34.5 - 39.5
40.5 - 45.5
Frequency
45
22
13
33
22
Class-Interval
17.5 - 22.5
23.5 - 28.5
29.5 - 34.5
35.5 - 40.5
41.5 - 46.5
Frequency
45
22
13
33
22
Class-Interval
16.5 - 22.5
22.5 - 28.5
28.5 - 34.5
34.5 - 40.5
40.5 - 46.5
Frequency
45
22
13
33
22
Class-Interval
16.5 - 22
22.5 - 28
28.5 - 34
34.5 - 40
40.5 - 46
Frequency
45
22
13
33
22
Class-Interval
17 - 22
22 - 27
27 - 32
32 - 37
37 - 42
Frequency
21
28
46
46
22
Question
9
9.
Identify the frequency distribution table for the given ages of 14 students in years
14
15
12
16
23
15
13
23
18
14
25
17
19
18
Age (in years)
12
13
14
15
16
17
18
19
23
25
No. of Students
1
1
2
2
1
1
2
1
2
1
Age (in years)
12
13
14
15
16
17
18
19
23
No. of Students
1
1
3
2
1
1
2
1
2
Age (in years)
11
13
14
15
16
17
20
21
23
24
25
No. of Students
2
1
2
1
1
1
1
2
1
1
1
Age (in years)
12
13
14
15
16
17
18
19
23
25
No. of Students
1
1
2
2
1
1
1
1
3
1
Age (in years)
10
11
12
15
16
17
19
21
No. of Students
1
5
1
1
3
1
1
1
Question
10
10.
The class boundaries of 10 - 14 which is in exclusive form are
9.5
-
14.5
10
-
14
9.5
-
14
10.5
-
13.5
10
-
14.5
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