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
16
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
.
72
79
64
61
73
73
47
53
65
70
67
64
68
73
58
51
(i)
Marks
47 - 53
53 - 59
59 - 65
65 - 71
71 - 77
77 - 83
No. of Students
2
2
7
4
4
1
(ii)
Marks
47 - 53
53 - 59
59 - 65
65 - 71
71 - 77
77 - 83
No. of Students
2
3
2
4
4
1
(iii)
Marks
47 - 53
53 - 59
59 - 65
65 - 71
71 - 77
77 - 83
No. of Students
2
1
3
4
4
2
(iv)
Marks
47 - 53
53 - 59
59 - 65
65 - 71
71 - 77
77 - 83
No. of Students
2
2
3
7
4
1
(v)
Marks
47 - 53
53 - 59
59 - 65
65 - 71
71 - 77
77 - 83
No. of Students
2
2
3
4
4
1
Question
2
2.
The marks obtained by
19
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
.
78
56
60
70
40
56
42
68
52
54
40
41
60
59
70
78
70
75
65
(i)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
3
5
5
2
(ii)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
7
5
5
3
(iii)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
2
5
5
3
(iv)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
2
1
5
3
(v)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
5
2
5
3
Question
3
3.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
16
students, taking class size
3
.
12
13
22
19
11
14
11
21
20
23
10
24
10
11
12
12
(i)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
No. of Students
8
4
0
3
3
(ii)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
No. of Students
8
2
0
3
3
(iii)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
No. of Students
8
0
2
3
3
(iv)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
No. of Students
8
2
4
3
3
(v)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
No. of Students
8
3
0
3
2
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
.
261
289
262
218
300
200
224
283
206
232
261
280
281
201
270
237
277
209
244
257
(i)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
6
8
9
1
(ii)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
1
4
9
6
(iii)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
6
9
4
1
(iv)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
6
4
9
1
(v)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
6
4
11
1
Question
5
5.
The weights (in gm) of
17
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
50
.
251
366
250
234
384
269
232
398
381
341
264
209
333
328
218
288
346
(i)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
6
3
6
4
(ii)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
6
4
3
4
(iii)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
6
3
4
4
(iv)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
6
5
4
4
(v)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
4
3
4
6
Question
6
6.
Given the sample data, prepare the class interval table in
exclusive
form with
3
as min value and a class size of
9
.
50
3
8
32
16
13
26
34
12
25
17
14
18
25
18
(i)
Class-Interval
3 - 12
12 - 21
21 - 30
30 - 39
39 - 48
48 - 57
Frequency
2
7
3
2
0
1
(ii)
Class-Interval
3 - 12
12 - 21
21 - 30
30 - 39
39 - 48
48 - 57
Frequency
2
3
7
2
0
1
(iii)
Class-Interval
3 - 12
12 - 21
21 - 30
30 - 39
39 - 48
48 - 57
Frequency
2
1
3
2
0
7
(iv)
Class-Interval
3 - 11
12 - 20
21 - 29
30 - 38
39 - 47
48 - 56
Frequency
2
7
3
2
0
1
(v)
Class-Interval
3 - 12
12 - 21
21 - 30
30 - 39
39 - 48
48 - 57
Frequency
2
7
1
2
0
1
Assignment Key
1) (v)
2) (iii)
3) (ii)
4) (iv)
5) (iii)
6) (i)
