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
18
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
.
42
62
66
46
48
67
61
47
55
53
55
48
76
48
80
48
79
44
(i)
Marks
42 - 50
50 - 58
58 - 66
66 - 74
74 - 82
No. of Students
8
6
2
2
3
(ii)
Marks
42 - 50
50 - 58
58 - 66
66 - 74
74 - 82
No. of Students
8
2
3
2
3
(iii)
Marks
42 - 50
50 - 58
58 - 66
66 - 74
74 - 82
No. of Students
8
3
2
2
3
(iv)
Marks
42 - 50
50 - 58
58 - 66
66 - 74
74 - 82
No. of Students
8
3
4
2
3
Question
2
2.
The marks obtained by
15
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
.
73
61
65
44
71
56
66
53
60
58
66
72
63
45
60
(i)
Marks
44 - 50
50 - 56
56 - 62
62 - 68
68 - 74
No. of Students
2
5
1
4
3
(ii)
Marks
44 - 50
50 - 56
56 - 62
62 - 68
68 - 74
No. of Students
2
3
5
4
1
(iii)
Marks
44 - 50
50 - 56
56 - 62
62 - 68
68 - 74
No. of Students
2
3
5
4
3
(iv)
Marks
44 - 50
50 - 56
56 - 62
62 - 68
68 - 74
No. of Students
2
1
5
4
3
(v)
Marks
44 - 50
50 - 56
56 - 62
62 - 68
68 - 74
No. of Students
2
1
9
4
3
Question
3
3.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
18
students, taking class size
2
.
20
21
11
13
22
23
18
14
12
20
11
10
17
19
20
23
13
17
(i)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
1
3
2
2
4
3
(ii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
3
5
2
2
4
3
(iii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
3
1
2
2
4
3
(iv)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
3
1
6
2
4
3
Question
4
4.
The daily wages (in rupees) of
16
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in exclusive form
taking class size
30
.
220
296
246
211
258
228
233
228
205
288
282
284
245
227
200
220
(i)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
1
4
3
8
(ii)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
8
4
8
1
(iii)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
8
4
3
1
(iv)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
8
7
3
1
(v)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
8
3
4
1
Question
5
5.
The weights (in gm) of
20
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
40
.
335
246
262
235
315
240
355
375
321
396
337
293
274
341
251
268
372
348
341
348
(i)
Weight (in gm)
235 - 275
275 - 315
315 - 355
355 - 395
395 - 435
No. of Fruits
7
1
8
3
1
(ii)
Weight (in gm)
235 - 275
275 - 315
315 - 355
355 - 395
395 - 435
No. of Fruits
7
1
6
3
1
(iii)
Weight (in gm)
235 - 275
275 - 315
315 - 355
355 - 395
395 - 435
No. of Fruits
7
8
1
3
1
(iv)
Weight (in gm)
235 - 275
275 - 315
315 - 355
355 - 395
395 - 435
No. of Fruits
7
6
8
3
1
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
8
.
25
36
1
39
30
38
48
7
2
37
39
14
36
31
33
32
34
34
(i)
Class-Interval
1 - 8
9 - 16
17 - 24
25 - 32
33 - 40
41 - 48
Frequency
3
1
0
4
9
1
(ii)
Class-Interval
1 - 9
9 - 17
17 - 25
25 - 33
33 - 41
41 - 49
Frequency
3
1
2
4
9
1
(iii)
Class-Interval
1 - 9
9 - 17
17 - 25
25 - 33
33 - 41
41 - 49
Frequency
3
1
0
4
9
1
(iv)
Class-Interval
1 - 9
9 - 17
17 - 25
25 - 33
33 - 41
41 - 49
Frequency
3
0
1
4
9
1
Assignment Key
1) (iii)
2) (iv)
3) (iii)
4) (iii)
5) (i)
6) (iii)
