EduSahara™ Assignment
Name : Class Interval Table Construction
Chapter : Frequency Distribution
Grade : ICSE Grade IX
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 inclusive form
taking class size
8
.
75
69
58
73
61
48
52
52
76
47
51
51
60
62
78
71
64
74
(i)
Marks
47 - 54
55 - 62
63 - 70
71 - 78
No. of Students
6
4
2
6
(ii)
Marks
47 - 54
55 - 62
63 - 70
71 - 78
No. of Students
6
2
4
6
(iii)
Marks
47 - 54
55 - 62
63 - 70
71 - 78
No. of Students
6
8
2
6
(iv)
Marks
47 - 54
55 - 62
63 - 70
71 - 78
No. of Students
6
4
5
6
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
.
57
44
77
73
57
40
52
70
74
54
55
62
71
64
69
50
52
78
44
56
(i)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
3
3
5
2
5
2
(ii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
3
2
5
2
5
3
(iii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
3
3
1
2
5
2
(iv)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
3
3
5
4
5
2
(v)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
3
5
3
2
5
2
Question
3
3.
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
.
57
43
72
43
65
46
70
74
56
68
54
73
53
71
62
58
(i)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
No. of Students
3
2
3
2
4
2
(ii)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
No. of Students
3
3
2
2
4
2
(iii)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
No. of Students
3
2
3
5
4
2
(iv)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
No. of Students
3
2
5
2
4
2
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
15
students, taking class size
2
.
24
16
19
18
13
14
21
16
14
16
20
22
19
17
15
(i)
Age (in years)
13 - 15
15 - 17
17 - 19
19 - 21
21 - 23
23 - 25
No. of Students
3
1
2
3
2
4
(ii)
Age (in years)
13 - 15
15 - 17
17 - 19
19 - 21
21 - 23
23 - 25
No. of Students
3
4
6
3
2
1
(iii)
Age (in years)
13 - 15
15 - 17
17 - 19
19 - 21
21 - 23
23 - 25
No. of Students
3
4
2
3
2
1
(iv)
Age (in years)
13 - 15
15 - 17
17 - 19
19 - 21
21 - 23
23 - 25
No. of Students
3
4
2
6
2
1
(v)
Age (in years)
13 - 15
15 - 17
17 - 19
19 - 21
21 - 23
23 - 25
No. of Students
3
2
4
3
2
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
.
215
267
293
241
212
236
249
201
259
226
250
292
265
275
276
224
259
(i)
Wages (in rupees)
201 - 230
231 - 260
261 - 290
291 - 320
No. of Workers
5
10
4
2
(ii)
Wages (in rupees)
201 - 230
231 - 260
261 - 290
291 - 320
No. of Workers
2
6
4
5
(iii)
Wages (in rupees)
201 - 230
231 - 260
261 - 290
291 - 320
No. of Workers
5
6
8
2
(iv)
Wages (in rupees)
201 - 230
231 - 260
261 - 290
291 - 320
No. of Workers
5
4
6
2
(v)
Wages (in rupees)
201 - 230
231 - 260
261 - 290
291 - 320
No. of Workers
5
6
4
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
.
257
285
278
269
244
284
269
223
205
254
264
209
292
206
233
235
204
202
(i)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
6
5
9
1
(ii)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
6
5
6
1
(iii)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
6
6
5
1
(iv)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
1
5
6
6
(v)
Wages (in rupees)
202 - 232
232 - 262
262 - 292
292 - 322
No. of Workers
6
9
6
1
Question
7
7.
The weights (in gm) of
18
fruits are as follows.
Form the grouped frequency table
in inclusive form
by taking class size
50
.
261
259
359
222
293
305
378
249
224
305
304
379
338
392
340
340
308
289
(i)
Weight (in gm)
222 - 271
272 - 321
322 - 371
372 - 421
No. of Fruits
5
10
4
3
(ii)
Weight (in gm)
222 - 271
272 - 321
322 - 371
372 - 421
No. of Fruits
5
4
6
3
(iii)
Weight (in gm)
222 - 271
272 - 321
322 - 371
372 - 421
No. of Fruits
5
6
6
3
(iv)
Weight (in gm)
222 - 271
272 - 321
322 - 371
372 - 421
No. of Fruits
3
6
4
5
(v)
Weight (in gm)
222 - 271
272 - 321
322 - 371
372 - 421
No. of Fruits
5
6
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
40
.
339
376
368
350
319
377
281
389
233
277
223
234
364
208
312
358
270
381
397
224
(i)
Weight (in gm)
208 - 248
248 - 288
288 - 328
328 - 368
368 - 408
No. of Fruits
5
3
4
4
6
(ii)
Weight (in gm)
208 - 248
248 - 288
288 - 328
328 - 368
368 - 408
No. of Fruits
5
5
2
4
6
(iii)
Weight (in gm)
208 - 248
248 - 288
288 - 328
328 - 368
368 - 408
No. of Fruits
5
3
2
4
6
(iv)
Weight (in gm)
208 - 248
248 - 288
288 - 328
328 - 368
368 - 408
No. of Fruits
5
6
2
4
3
(v)
Weight (in gm)
208 - 248
248 - 288
288 - 328
328 - 368
368 - 408
No. of Fruits
5
2
3
4
6
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
6
as min value and a class size of
7
.
49
24
45
27
16
30
8
49
47
13
38
36
36
17
6
20
6
45
(i)
Class-Interval
6 - 12
13 - 19
20 - 26
27 - 33
34 - 40
41 - 47
48 - 54
Frequency
3
3
2
2
3
3
2
(ii)
Class-Interval
6 - 12
13 - 19
20 - 26
27 - 33
34 - 40
41 - 47
48 - 54
Frequency
3
2
2
2
3
3
3
(iii)
Class-Interval
6 - 12
13 - 19
20 - 26
27 - 33
34 - 40
41 - 47
48 - 54
Frequency
3
2
3
2
3
3
2
(iv)
Class-Interval
6 - 13
13 - 20
20 - 27
27 - 34
34 - 41
41 - 48
48 - 55
Frequency
3
3
2
2
3
3
2
(v)
Class-Interval
6 - 12
13 - 19
20 - 26
27 - 33
34 - 40
41 - 47
48 - 54
Frequency
3
3
5
2
3
3
2
Question
10
10.
Given the sample data, prepare the class interval table in
exclusive
form with
1
as min value and a class size of
6
.
14
8
10
26
35
3
40
49
26
19
45
29
36
30
36
20
18
36
1
20
(i)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
49 - 55
Frequency
2
2
3
2
4
4
1
1
1
(ii)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
49 - 54
Frequency
2
2
2
3
4
4
1
1
1
(iii)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
49 - 55
Frequency
2
2
2
3
4
4
1
1
1
(iv)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
49 - 55
Frequency
2
1
2
3
4
4
1
1
2
(v)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
49 - 55
Frequency
2
2
2
6
4
4
1
1
1
Assignment Key
1) (i)
2) (i)
3) (i)
4) (iii)
5) (v)
6) (ii)
7) (v)
8) (iii)
9) (i)
10) (iii)
