EduSahara™ Assignment
Name : Constructing Class Interval Tables
Chapter : Data Handling
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
The marks obtained by
20
students in an examination are given below.
Represent the data in the form of a frequency distribution table
in exclusive form
taking class size
7
.
73
78
41
77
62
57
45
47
73
69
46
47
50
80
61
76
49
72
40
61
(i)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
4
1
4
3
4
4
(ii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
4
4
1
8
4
4
(iii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
4
4
1
3
4
4
(iv)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
4
4
6
3
4
4
Question
2
2.
The marks obtained by
17
students in an examination are given below.
Represent the data in the form of a frequency distribution table
in exclusive form
taking class size
8
.
65
44
43
69
76
61
49
79
76
40
73
78
61
46
71
62
76
(i)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
6
3
3
1
(ii)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
1
3
3
6
(iii)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
1
1
3
6
(iv)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
6
3
3
6
(v)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
3
1
3
6
Question
3
3.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
20
students, taking class size
4
.
16
23
25
25
11
25
17
14
24
12
13
12
10
14
16
20
22
21
19
24
(i)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
5
10
3
7
(ii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
5
5
7
7
(iii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
5
5
3
7
(iv)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
7
5
3
5
(v)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
5
3
5
7
Question
4
4.
The daily wages (in rupees) of
20
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in exclusive form
taking class size
30
.
213
297
261
289
227
242
240
222
230
264
263
208
295
278
222
208
219
202
224
231
(i)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
11
3
9
2
(ii)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
2
3
4
11
(iii)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
11
7
4
2
(iv)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
11
4
3
2
(v)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
11
3
4
2
Question
5
5.
The weights (in gm) of
19
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
50
.
228
363
287
247
304
224
251
311
221
353
220
323
335
320
329
327
274
261
231
(i)
Weight (in gm)
220 - 270
270 - 320
320 - 370
No. of Fruits
7
4
8
(ii)
Weight (in gm)
220 - 270
270 - 320
320 - 370
No. of Fruits
8
4
7
(iii)
Weight (in gm)
220 - 270
270 - 320
320 - 370
No. of Fruits
8
6
7
(iv)
Weight (in gm)
220 - 270
270 - 320
320 - 370
No. of Fruits
8
9
7
(v)
Weight (in gm)
220 - 270
270 - 320
320 - 370
No. of Fruits
4
8
7
Question
6
6.
Given the sample data, prepare the class interval table in
exclusive
form with
4
as min value and a class size of
9
.
46
29
47
8
4
41
23
36
44
43
34
8
20
22
31
20
47
41
15
(i)
Class-Interval
4 - 13
13 - 22
22 - 31
31 - 40
40 - 49
Frequency
3
7
3
3
3
(ii)
Class-Interval
4 - 13
13 - 22
22 - 31
31 - 40
40 - 49
Frequency
3
3
3
3
7
(iii)
Class-Interval
4 - 12
13 - 21
22 - 30
31 - 39
40 - 48
Frequency
3
3
3
3
7
(iv)
Class-Interval
4 - 13
13 - 22
22 - 31
31 - 40
40 - 49
Frequency
3
7
3
3
7
Assignment Key
1) (iii)
2) (ii)
3) (iii)
4) (v)
5) (ii)
6) (ii)
