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
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
6
.
68
46
51
42
50
79
57
68
44
55
77
53
52
57
73
43
68
(i)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
4
4
7
0
3
2
1
(ii)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
4
4
3
0
3
2
1
(iii)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
4
3
4
0
3
2
1
(iv)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
4
1
3
0
3
2
4
(v)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
4
4
3
3
3
2
1
Question
2
2.
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
6
.
45
44
45
75
64
72
67
49
43
63
40
59
62
74
79
80
62
72
68
71
(i)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
1
0
7
3
5
2
(ii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
1
0
4
3
5
2
(iii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
1
5
4
3
5
2
(iv)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
0
1
4
3
5
2
(v)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
2
0
4
3
5
1
Question
3
3.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
15
students, taking class size
4
.
24
17
17
14
18
24
20
21
24
11
14
19
13
14
25
(i)
Age (in years)
11 - 15
15 - 19
19 - 23
23 - 27
No. of Students
4
3
3
5
(ii)
Age (in years)
11 - 15
15 - 19
19 - 23
23 - 27
No. of Students
5
7
3
4
(iii)
Age (in years)
11 - 15
15 - 19
19 - 23
23 - 27
No. of Students
5
3
8
4
(iv)
Age (in years)
11 - 15
15 - 19
19 - 23
23 - 27
No. of Students
5
3
3
4
Question
4
4.
The daily wages (in rupees) of
18
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in exclusive form
taking class size
20
.
235
228
200
279
251
243
269
247
238
230
246
273
252
227
256
224
288
201
(i)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
2
1
6
3
6
(ii)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
2
6
6
3
1
(iii)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
2
6
9
3
1
(iv)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
2
8
6
3
1
Question
5
5.
The weights (in gm) of
18
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
40
.
321
329
245
384
366
234
310
230
392
393
346
234
215
314
215
296
322
206
(i)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
7
5
0
2
4
(ii)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
7
0
8
2
4
(iii)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
7
4
5
2
0
(iv)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
7
0
5
2
4
(v)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
7
4
5
2
4
Question
6
6.
Given the sample data, prepare the class interval table in
exclusive
form with
1
as min value and a class size of
9
.
50
40
16
11
23
31
40
42
1
36
28
17
21
43
28
5
(i)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
2
3
6
4
4
1
(ii)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
2
3
2
4
4
1
(iii)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
2
2
3
4
4
1
(iv)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
2
1
2
4
4
3
(v)
Class-Interval
1 - 9
10 - 18
19 - 27
28 - 36
37 - 45
46 - 54
Frequency
2
3
2
4
4
1
Assignment Key
1) (ii)
2) (ii)
3) (iv)
4) (ii)
5) (iv)
6) (ii)
