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
5
.
51
64
79
60
41
49
42
40
49
56
69
53
49
71
60
53
48
78
(i)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
2
3
1
3
1
1
4
(ii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
4
3
1
8
1
1
2
(iii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
4
3
1
3
1
1
2
(iv)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
4
1
3
3
1
1
2
(v)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
4
6
1
3
1
1
2
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
5
.
67
70
47
53
60
53
68
61
66
61
43
78
40
40
60
(i)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
1
0
2
4
3
1
1
(ii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
1
7
0
4
3
1
1
(iii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
1
2
0
6
3
1
1
(iv)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
1
2
0
4
3
1
1
Question
3
3.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
16
students, taking class size
4
.
19
10
21
13
22
11
15
13
11
17
20
25
17
25
13
10
(i)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
7
7
3
3
(ii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
7
3
3
3
(iii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
7
3
1
3
(iv)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
3
3
3
7
Question
4
4.
The daily wages (in rupees) of
15
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in exclusive form
taking class size
30
.
278
298
231
252
251
206
227
259
220
202
267
222
272
255
294
(i)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
6
7
3
2
(ii)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
6
3
4
2
(iii)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
2
4
3
6
(iv)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
6
4
6
2
(v)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
6
4
3
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
.
265
350
202
390
268
259
374
396
223
266
291
331
389
288
268
202
234
332
304
(i)
Weight (in gm)
202 - 252
252 - 302
302 - 352
352 - 402
No. of Fruits
4
4
7
4
(ii)
Weight (in gm)
202 - 252
252 - 302
302 - 352
352 - 402
No. of Fruits
4
7
4
4
(iii)
Weight (in gm)
202 - 252
252 - 302
302 - 352
352 - 402
No. of Fruits
4
7
7
4
(iv)
Weight (in gm)
202 - 252
252 - 302
302 - 352
352 - 402
No. of Fruits
4
12
4
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
.
7
42
14
1
11
44
36
13
19
3
12
27
35
30
50
49
(i)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
3
2
2
3
2
4
(ii)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
3
2
4
3
2
2
(iii)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
3
4
7
3
2
2
(iv)
Class-Interval
1 - 9
10 - 18
19 - 27
28 - 36
37 - 45
46 - 54
Frequency
3
4
2
3
2
2
(v)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
3
4
2
3
2
2
Assignment Key
1) (iii)
2) (iv)
3) (ii)
4) (v)
5) (ii)
6) (v)
