EduSahara™ Assignment
Name : Constructing Class Interval Tables
Chapter : Statistics
Grade : SSC Grade IX
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 inclusive form
taking class size
7
.
75
65
69
72
74
53
72
75
73
57
55
73
54
78
74
65
55
(i)
Marks
53 - 59
60 - 66
67 - 73
74 - 80
No. of Students
5
2
5
5
(ii)
Marks
53 - 59
60 - 66
67 - 73
74 - 80
No. of Students
5
4
5
5
(iii)
Marks
53 - 59
60 - 66
67 - 73
74 - 80
No. of Students
5
2
2
5
(iv)
Marks
53 - 59
60 - 66
67 - 73
74 - 80
No. of Students
5
5
2
5
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
5
.
56
79
50
61
67
70
53
73
55
64
62
71
69
58
49
55
60
78
72
73
(i)
Marks
49 - 54
54 - 59
59 - 64
64 - 69
69 - 74
74 - 79
79 - 84
No. of Students
3
1
3
2
6
1
4
(ii)
Marks
49 - 54
54 - 59
59 - 64
64 - 69
69 - 74
74 - 79
79 - 84
No. of Students
3
3
4
2
6
1
1
(iii)
Marks
49 - 54
54 - 59
59 - 64
64 - 69
69 - 74
74 - 79
79 - 84
No. of Students
3
4
5
2
6
1
1
(iv)
Marks
49 - 54
54 - 59
59 - 64
64 - 69
69 - 74
74 - 79
79 - 84
No. of Students
3
4
3
5
6
1
1
(v)
Marks
49 - 54
54 - 59
59 - 64
64 - 69
69 - 74
74 - 79
79 - 84
No. of Students
3
4
3
2
6
1
1
Question
3
3.
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
6
.
65
77
51
53
62
69
45
56
58
60
56
67
63
61
43
65
54
48
51
(i)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
No. of Students
3
4
9
5
2
1
(ii)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
No. of Students
3
1
4
5
2
4
(iii)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
No. of Students
3
4
4
5
2
1
(iv)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
No. of Students
3
4
4
2
2
1
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
16
students, taking class size
4
.
22
16
24
13
16
25
15
22
21
14
16
16
24
18
25
10
(i)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
2
2
6
6
(ii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
6
6
2
2
(iii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
2
9
2
6
(iv)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
2
6
5
6
(v)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
2
6
2
6
Question
5
5.
The daily wages (in rupees) of
19
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in inclusive form
taking class size
20
.
270
206
270
264
273
252
293
201
216
283
262
250
293
210
230
219
284
214
230
(i)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
6
6
2
5
4
(ii)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
6
2
2
5
4
(iii)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
6
2
5
5
4
(iv)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
6
4
2
5
2
Question
6
6.
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
30
.
293
300
278
275
206
238
282
215
201
295
260
205
289
249
275
264
256
218
(i)
Wages (in rupees)
201 - 231
231 - 261
261 - 291
291 - 321
No. of Workers
5
4
4
3
(ii)
Wages (in rupees)
201 - 231
231 - 261
261 - 291
291 - 321
No. of Workers
5
6
4
3
(iii)
Wages (in rupees)
201 - 231
231 - 261
261 - 291
291 - 321
No. of Workers
3
4
6
5
(iv)
Wages (in rupees)
201 - 231
231 - 261
261 - 291
291 - 321
No. of Workers
5
4
6
3
(v)
Wages (in rupees)
201 - 231
231 - 261
261 - 291
291 - 321
No. of Workers
5
9
6
3
Question
7
7.
The weights (in gm) of
16
fruits are as follows.
Form the grouped frequency table
in inclusive form
by taking class size
50
.
344
384
200
391
264
224
225
219
237
332
240
389
291
312
275
257
(i)
Weight (in gm)
200 - 249
250 - 299
300 - 349
350 - 399
No. of Fruits
6
4
8
3
(ii)
Weight (in gm)
200 - 249
250 - 299
300 - 349
350 - 399
No. of Fruits
6
2
3
3
(iii)
Weight (in gm)
200 - 249
250 - 299
300 - 349
350 - 399
No. of Fruits
6
4
3
3
(iv)
Weight (in gm)
200 - 249
250 - 299
300 - 349
350 - 399
No. of Fruits
3
4
3
6
(v)
Weight (in gm)
200 - 249
250 - 299
300 - 349
350 - 399
No. of Fruits
6
3
4
3
Question
8
8.
The weights (in gm) of
20
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
50
.
248
233
366
299
255
388
376
321
273
326
233
363
283
333
368
399
232
314
201
259
(i)
Weight (in gm)
201 - 251
251 - 301
301 - 351
351 - 401
No. of Fruits
5
5
8
6
(ii)
Weight (in gm)
201 - 251
251 - 301
301 - 351
351 - 401
No. of Fruits
6
5
4
5
(iii)
Weight (in gm)
201 - 251
251 - 301
301 - 351
351 - 401
No. of Fruits
5
5
4
6
(iv)
Weight (in gm)
201 - 251
251 - 301
301 - 351
351 - 401
No. of Fruits
5
10
4
6
(v)
Weight (in gm)
201 - 251
251 - 301
301 - 351
351 - 401
No. of Fruits
5
4
5
6
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
1
as min value and a class size of
6
.
43
17
50
8
8
14
12
47
12
3
32
24
41
26
6
27
13
21
1
40
(i)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
49 - 54
Frequency
3
4
3
6
2
1
2
2
1
(ii)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
49 - 55
Frequency
3
4
3
2
2
1
2
2
1
(iii)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
49 - 54
Frequency
3
4
2
3
2
1
2
2
1
(iv)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
49 - 54
Frequency
3
1
3
2
2
1
2
2
4
(v)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
49 - 54
Frequency
3
4
3
2
2
1
2
2
1
Question
10
10.
Given the sample data, prepare the class interval table in
exclusive
form with
2
as min value and a class size of
7
.
30
18
14
14
2
5
30
3
50
33
33
47
23
6
28
46
13
46
(i)
Class-Interval
2 - 9
9 - 16
16 - 23
23 - 30
30 - 37
37 - 44
44 - 51
Frequency
4
1
3
2
4
0
4
(ii)
Class-Interval
2 - 8
9 - 15
16 - 22
23 - 29
30 - 36
37 - 43
44 - 50
Frequency
4
3
1
2
4
0
4
(iii)
Class-Interval
2 - 9
9 - 16
16 - 23
23 - 30
30 - 37
37 - 44
44 - 51
Frequency
4
4
1
2
4
0
3
(iv)
Class-Interval
2 - 9
9 - 16
16 - 23
23 - 30
30 - 37
37 - 44
44 - 51
Frequency
4
3
5
2
4
0
4
(v)
Class-Interval
2 - 9
9 - 16
16 - 23
23 - 30
30 - 37
37 - 44
44 - 51
Frequency
4
3
1
2
4
0
4
Assignment Key
1) (i)
2) (v)
3) (iii)
4) (v)
5) (ii)
6) (iv)
7) (iii)
8) (iii)
9) (v)
10) (v)
