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
19
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
.
48
57
47
42
52
54
71
79
46
72
65
53
43
78
55
49
58
43
77
(i)
Marks
42 - 46
47 - 51
52 - 56
57 - 61
62 - 66
67 - 71
72 - 76
77 - 81
No. of Students
4
3
4
2
6
1
1
3
(ii)
Marks
42 - 46
47 - 51
52 - 56
57 - 61
62 - 66
67 - 71
72 - 76
77 - 81
No. of Students
4
3
6
2
1
1
1
3
(iii)
Marks
42 - 46
47 - 51
52 - 56
57 - 61
62 - 66
67 - 71
72 - 76
77 - 81
No. of Students
4
3
2
4
1
1
1
3
(iv)
Marks
42 - 46
47 - 51
52 - 56
57 - 61
62 - 66
67 - 71
72 - 76
77 - 81
No. of Students
4
3
4
2
1
1
1
3
Question
2
2.
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
5
.
53
41
63
66
46
64
77
56
50
48
52
40
62
65
58
60
(i)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
2
2
3
4
2
0
1
(ii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
2
3
2
4
2
0
1
(iii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
2
3
2
9
2
0
1
(iv)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
2
7
2
4
2
0
1
(v)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
1
3
2
4
2
0
2
Question
3
3.
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
7
.
51
65
52
72
72
70
55
42
42
40
78
52
43
44
69
46
74
54
(i)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
6
1
2
1
5
3
(ii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
6
3
2
3
5
1
(iii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
6
2
3
1
5
1
(iv)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
6
3
7
1
5
1
(v)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
6
3
2
1
5
1
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
19
students, taking class size
3
.
11
16
22
15
12
11
22
11
12
21
15
11
24
17
15
12
11
22
12
(i)
Age (in years)
11 - 14
14 - 17
17 - 20
20 - 23
23 - 26
No. of Students
9
1
4
4
1
(ii)
Age (in years)
11 - 14
14 - 17
17 - 20
20 - 23
23 - 26
No. of Students
9
4
6
4
1
(iii)
Age (in years)
11 - 14
14 - 17
17 - 20
20 - 23
23 - 26
No. of Students
9
1
1
4
1
(iv)
Age (in years)
11 - 14
14 - 17
17 - 20
20 - 23
23 - 26
No. of Students
9
4
1
4
1
(v)
Age (in years)
11 - 14
14 - 17
17 - 20
20 - 23
23 - 26
No. of Students
9
1
1
4
4
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
.
237
292
296
294
293
237
267
203
213
228
209
259
270
256
239
267
205
225
255
(i)
Wages (in rupees)
203 - 222
223 - 242
243 - 262
263 - 282
283 - 302
No. of Workers
4
5
1
3
4
(ii)
Wages (in rupees)
203 - 222
223 - 242
243 - 262
263 - 282
283 - 302
No. of Workers
4
10
3
3
4
(iii)
Wages (in rupees)
203 - 222
223 - 242
243 - 262
263 - 282
283 - 302
No. of Workers
4
5
3
3
4
(iv)
Wages (in rupees)
203 - 222
223 - 242
243 - 262
263 - 282
283 - 302
No. of Workers
4
3
5
3
4
(v)
Wages (in rupees)
203 - 222
223 - 242
243 - 262
263 - 282
283 - 302
No. of Workers
4
4
3
3
5
Question
6
6.
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
.
259
294
227
273
250
288
284
257
236
200
220
268
206
219
233
(i)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
5
4
5
1
(ii)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
5
10
4
1
(iii)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
5
5
4
1
(iv)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
1
5
4
5
(v)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
5
5
2
1
Question
7
7.
The weights (in gm) of
19
fruits are as follows.
Form the grouped frequency table
in inclusive form
by taking class size
50
.
306
255
289
245
338
264
255
281
230
327
372
256
225
382
258
215
352
383
288
(i)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
9
3
4
3
(ii)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
9
1
3
3
(iii)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
9
4
8
3
(iv)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
3
4
3
9
(v)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
9
4
3
3
Question
8
8.
The weights (in gm) of
15
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
40
.
340
385
299
301
260
206
219
328
340
237
280
332
245
360
261
(i)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
4
1
2
5
3
(ii)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
4
2
3
5
1
(iii)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
4
3
7
5
1
(iv)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
4
6
2
5
1
(v)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
4
3
2
5
1
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
.
39
49
1
7
47
49
35
44
25
9
37
42
49
26
19
12
(i)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
49 - 54
Frequency
1
3
0
1
2
1
3
2
3
(ii)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
49 - 54
Frequency
1
3
1
0
2
1
3
2
3
(iii)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
49 - 54
Frequency
1
3
0
3
2
1
3
2
3
(iv)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
49 - 55
Frequency
1
3
0
1
2
1
3
2
3
Question
10
10.
Given the sample data, prepare the class interval table in
exclusive
form with
6
as min value and a class size of
7
.
41
6
24
37
18
45
27
44
6
31
46
39
49
31
37
30
(i)
Class-Interval
6 - 13
13 - 20
20 - 27
27 - 34
34 - 41
41 - 48
48 - 55
Frequency
2
1
1
4
3
4
1
(ii)
Class-Interval
6 - 12
13 - 19
20 - 26
27 - 33
34 - 40
41 - 47
48 - 54
Frequency
2
1
1
4
3
4
1
(iii)
Class-Interval
6 - 13
13 - 20
20 - 27
27 - 34
34 - 41
41 - 48
48 - 55
Frequency
2
1
6
4
3
4
1
Assignment Key
1) (iv)
2) (ii)
3) (v)
4) (iv)
5) (iii)
6) (iii)
7) (v)
8) (v)
9) (i)
10) (i)
