EduSahara™ Assignment
Name : Constructing Class Interval Tables
Chapter : Frequency Distribution
Grade : ICSE 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
5
.
67
56
58
67
69
58
69
78
42
53
64
75
72
61
69
72
51
(i)
Marks
42 - 46
47 - 51
52 - 56
57 - 61
62 - 66
67 - 71
72 - 76
77 - 81
No. of Students
1
1
6
3
1
5
3
1
(ii)
Marks
42 - 46
47 - 51
52 - 56
57 - 61
62 - 66
67 - 71
72 - 76
77 - 81
No. of Students
1
1
2
3
3
5
3
1
(iii)
Marks
42 - 46
47 - 51
52 - 56
57 - 61
62 - 66
67 - 71
72 - 76
77 - 81
No. of Students
1
1
3
2
1
5
3
1
(iv)
Marks
42 - 46
47 - 51
52 - 56
57 - 61
62 - 66
67 - 71
72 - 76
77 - 81
No. of Students
1
1
2
3
1
5
3
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
7
.
73
68
54
68
57
64
47
46
61
60
40
61
52
59
63
46
49
47
53
42
(i)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
No. of Students
4
5
1
4
3
(ii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
No. of Students
4
3
4
4
5
(iii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
No. of Students
4
4
5
4
3
(iv)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
No. of Students
4
2
4
4
3
(v)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
No. of Students
4
5
4
4
3
Question
3
3.
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
.
50
43
57
53
75
57
59
55
50
58
52
41
60
47
59
73
54
57
69
48
(i)
Marks
41 - 46
46 - 51
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
No. of Students
2
2
4
7
0
1
4
(ii)
Marks
41 - 46
46 - 51
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
No. of Students
2
4
8
7
0
1
2
(iii)
Marks
41 - 46
46 - 51
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
No. of Students
2
4
4
7
0
1
2
(iv)
Marks
41 - 46
46 - 51
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
No. of Students
2
4
4
4
0
1
2
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
17
students, taking class size
3
.
15
22
25
23
23
10
22
17
12
23
16
17
10
17
23
10
16
(i)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
4
1
1
0
6
1
(ii)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
4
5
1
0
6
1
(iii)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
4
1
5
5
6
1
(iv)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
4
1
5
0
6
1
Question
5
5.
The daily wages (in rupees) of
17
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in inclusive form
taking class size
30
.
265
222
300
277
250
219
295
243
271
208
251
205
279
251
248
285
253
(i)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
295 - 324
No. of Workers
4
6
5
2
(ii)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
295 - 324
No. of Workers
4
8
5
2
(iii)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
295 - 324
No. of Workers
2
6
5
4
(iv)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
295 - 324
No. of Workers
4
5
6
2
(v)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
295 - 324
No. of Workers
4
6
8
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
20
.
208
238
211
212
242
249
268
292
233
265
243
279
228
296
266
207
232
259
(i)
Wages (in rupees)
207 - 227
227 - 247
247 - 267
267 - 287
287 - 307
No. of Workers
4
4
6
2
2
(ii)
Wages (in rupees)
207 - 227
227 - 247
247 - 267
267 - 287
287 - 307
No. of Workers
4
2
4
2
6
(iii)
Wages (in rupees)
207 - 227
227 - 247
247 - 267
267 - 287
287 - 307
No. of Workers
4
11
4
2
2
(iv)
Wages (in rupees)
207 - 227
227 - 247
247 - 267
267 - 287
287 - 307
No. of Workers
4
6
8
2
2
(v)
Wages (in rupees)
207 - 227
227 - 247
247 - 267
267 - 287
287 - 307
No. of Workers
4
6
4
2
2
Question
7
7.
The weights (in gm) of
20
fruits are as follows.
Form the grouped frequency table
in inclusive form
by taking class size
50
.
365
359
300
369
311
261
372
222
336
325
326
357
278
213
351
336
369
347
288
267
(i)
Weight (in gm)
213 - 262
263 - 312
313 - 362
363 - 412
No. of Fruits
3
5
8
4
(ii)
Weight (in gm)
213 - 262
263 - 312
313 - 362
363 - 412
No. of Fruits
3
5
5
4
(iii)
Weight (in gm)
213 - 262
263 - 312
313 - 362
363 - 412
No. of Fruits
4
5
8
3
(iv)
Weight (in gm)
213 - 262
263 - 312
313 - 362
363 - 412
No. of Fruits
3
8
5
4
(v)
Weight (in gm)
213 - 262
263 - 312
313 - 362
363 - 412
No. of Fruits
3
10
8
4
Question
8
8.
The weights (in gm) of
16
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
50
.
278
241
254
397
399
347
385
329
341
357
281
209
294
216
248
348
(i)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
5
3
5
3
(ii)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
3
3
5
5
(iii)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
5
5
3
3
(iv)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
5
5
5
3
(v)
Weight (in gm)
209 - 259
259 - 309
309 - 359
359 - 409
No. of Fruits
5
3
10
3
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
4
as min value and a class size of
6
.
41
13
23
13
16
18
13
50
5
5
33
4
15
20
22
11
43
50
25
39
(i)
Class-Interval
4 - 10
10 - 16
16 - 22
22 - 28
28 - 34
34 - 40
40 - 46
46 - 52
Frequency
3
5
3
3
1
1
2
2
(ii)
Class-Interval
4 - 9
10 - 15
16 - 21
22 - 27
28 - 33
34 - 39
40 - 45
46 - 51
Frequency
3
5
5
3
1
1
2
2
(iii)
Class-Interval
4 - 9
10 - 15
16 - 21
22 - 27
28 - 33
34 - 39
40 - 45
46 - 51
Frequency
3
5
3
3
1
1
2
2
(iv)
Class-Interval
4 - 9
10 - 15
16 - 21
22 - 27
28 - 33
34 - 39
40 - 45
46 - 51
Frequency
3
2
3
3
1
1
2
5
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
9
.
50
2
14
29
28
25
21
46
48
31
11
19
3
37
47
32
39
11
39
11
(i)
Class-Interval
2 - 10
11 - 19
20 - 28
29 - 37
38 - 46
47 - 55
Frequency
2
5
3
4
3
3
(ii)
Class-Interval
2 - 11
11 - 20
20 - 29
29 - 38
38 - 47
47 - 56
Frequency
2
3
5
4
3
3
(iii)
Class-Interval
2 - 11
11 - 20
20 - 29
29 - 38
38 - 47
47 - 56
Frequency
2
3
3
4
3
5
(iv)
Class-Interval
2 - 11
11 - 20
20 - 29
29 - 38
38 - 47
47 - 56
Frequency
2
5
6
4
3
3
(v)
Class-Interval
2 - 11
11 - 20
20 - 29
29 - 38
38 - 47
47 - 56
Frequency
2
5
3
4
3
3
Assignment Key
1) (iv)
2) (v)
3) (iii)
4) (iv)
5) (i)
6) (v)
7) (i)
8) (i)
9) (iii)
10) (v)
