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
7
.
71
75
71
71
44
79
40
48
51
69
80
74
41
80
56
72
52
(i)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
1
3
0
6
4
(ii)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
3
1
0
6
4
(iii)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
4
1
0
6
3
(iv)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
3
1
4
6
4
(v)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
3
4
0
6
4
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
8
.
55
41
41
54
64
64
43
72
53
47
43
65
46
64
71
76
73
46
65
62
(i)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
7
6
4
4
2
(ii)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
7
4
3
4
2
(iii)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
7
3
7
4
2
(iv)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
7
3
4
4
2
(v)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
7
2
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
6
.
79
43
66
64
66
48
63
43
43
54
79
71
63
49
69
78
66
62
77
68
(i)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
79 - 85
No. of Students
4
2
5
7
3
2
2
(ii)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
79 - 85
No. of Students
4
2
0
11
3
2
2
(iii)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
79 - 85
No. of Students
4
2
0
7
3
2
2
(iv)
Marks
43 - 49
49 - 55
55 - 61
61 - 67
67 - 73
73 - 79
79 - 85
No. of Students
4
0
2
7
3
2
2
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
16
students, taking class size
4
.
10
12
11
16
23
20
23
19
21
17
17
24
19
15
25
20
(i)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
3
4
9
4
(ii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
3
5
4
4
(iii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
4
4
5
3
(iv)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
3
4
5
4
(v)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
3
8
5
4
Question
5
5.
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 inclusive form
taking class size
20
.
233
214
242
229
282
292
211
295
236
280
257
217
254
215
291
277
245
232
(i)
Wages (in rupees)
211 - 230
231 - 250
251 - 270
271 - 290
291 - 310
No. of Workers
5
5
6
3
3
(ii)
Wages (in rupees)
211 - 230
231 - 250
251 - 270
271 - 290
291 - 310
No. of Workers
5
10
2
3
3
(iii)
Wages (in rupees)
211 - 230
231 - 250
251 - 270
271 - 290
291 - 310
No. of Workers
5
2
5
3
3
(iv)
Wages (in rupees)
211 - 230
231 - 250
251 - 270
271 - 290
291 - 310
No. of Workers
5
5
2
3
3
(v)
Wages (in rupees)
211 - 230
231 - 250
251 - 270
271 - 290
291 - 310
No. of Workers
5
3
2
3
5
Question
6
6.
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 exclusive form
taking class size
20
.
210
290
255
299
258
286
232
205
271
274
201
246
277
292
231
253
248
(i)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
2
10
3
4
(ii)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
5
2
3
4
(iii)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
7
5
3
4
(iv)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
4
5
3
2
(v)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
2
5
3
4
Question
7
7.
The weights (in gm) of
17
fruits are as follows.
Form the grouped frequency table
in inclusive form
by taking class size
50
.
388
276
286
392
304
224
302
387
323
339
261
385
317
308
326
281
259
(i)
Weight (in gm)
224 - 273
274 - 323
324 - 373
374 - 423
No. of Fruits
3
8
2
4
(ii)
Weight (in gm)
224 - 273
274 - 323
324 - 373
374 - 423
No. of Fruits
3
2
8
4
(iii)
Weight (in gm)
224 - 273
274 - 323
324 - 373
374 - 423
No. of Fruits
4
8
2
3
(iv)
Weight (in gm)
224 - 273
274 - 323
324 - 373
374 - 423
No. of Fruits
3
5
2
4
(v)
Weight (in gm)
224 - 273
274 - 323
324 - 373
374 - 423
No. of Fruits
3
8
7
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
40
.
315
293
250
226
283
227
382
353
379
362
348
306
315
276
299
363
(i)
Weight (in gm)
226 - 266
266 - 306
306 - 346
346 - 386
No. of Fruits
3
4
6
6
(ii)
Weight (in gm)
226 - 266
266 - 306
306 - 346
346 - 386
No. of Fruits
3
3
4
6
(iii)
Weight (in gm)
226 - 266
266 - 306
306 - 346
346 - 386
No. of Fruits
3
4
3
6
(iv)
Weight (in gm)
226 - 266
266 - 306
306 - 346
346 - 386
No. of Fruits
6
4
3
3
(v)
Weight (in gm)
226 - 266
266 - 306
306 - 346
346 - 386
No. of Fruits
3
8
3
6
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
5
as min value and a class size of
7
.
11
12
40
6
36
42
5
32
5
30
44
20
38
35
11
16
34
39
21
(i)
Class-Interval
5 - 12
12 - 19
19 - 26
26 - 33
33 - 40
40 - 47
Frequency
5
2
2
2
5
3
(ii)
Class-Interval
5 - 11
12 - 18
19 - 25
26 - 32
33 - 39
40 - 46
Frequency
5
3
2
2
5
2
(iii)
Class-Interval
5 - 11
12 - 18
19 - 25
26 - 32
33 - 39
40 - 46
Frequency
5
2
4
2
5
3
(iv)
Class-Interval
5 - 11
12 - 18
19 - 25
26 - 32
33 - 39
40 - 46
Frequency
5
2
2
2
5
3
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
10
.
37
44
8
49
49
45
17
26
16
6
38
32
49
26
35
28
2
23
(i)
Class-Interval
2 - 12
12 - 22
22 - 32
32 - 42
42 - 52
Frequency
3
7
4
4
5
(ii)
Class-Interval
2 - 12
12 - 22
22 - 32
32 - 42
42 - 52
Frequency
3
5
4
4
2
(iii)
Class-Interval
2 - 12
12 - 22
22 - 32
32 - 42
42 - 52
Frequency
3
4
2
4
5
(iv)
Class-Interval
2 - 11
12 - 21
22 - 31
32 - 41
42 - 51
Frequency
3
2
4
4
5
(v)
Class-Interval
2 - 12
12 - 22
22 - 32
32 - 42
42 - 52
Frequency
3
2
4
4
5
Assignment Key
1) (ii)
2) (iv)
3) (iii)
4) (iv)
5) (iv)
6) (v)
7) (i)
8) (iii)
9) (iv)
10) (v)
