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
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
6
.
45
58
63
77
69
65
69
58
52
66
79
47
69
79
51
78
55
(i)
Marks
45 - 50
51 - 56
57 - 62
63 - 68
69 - 74
75 - 80
No. of Students
2
3
2
5
3
4
(ii)
Marks
45 - 50
51 - 56
57 - 62
63 - 68
69 - 74
75 - 80
No. of Students
2
3
2
3
3
4
(iii)
Marks
45 - 50
51 - 56
57 - 62
63 - 68
69 - 74
75 - 80
No. of Students
2
3
4
3
3
4
(iv)
Marks
45 - 50
51 - 56
57 - 62
63 - 68
69 - 74
75 - 80
No. of Students
2
2
3
3
3
4
(v)
Marks
45 - 50
51 - 56
57 - 62
63 - 68
69 - 74
75 - 80
No. of Students
2
4
2
3
3
3
Question
2
2.
The marks obtained by
15
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
.
64
70
56
64
43
52
80
77
73
74
78
76
52
61
48
(i)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
2
1
1
2
1
4
3
(ii)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
3
1
1
4
1
4
2
(iii)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
3
5
1
2
1
4
2
(iv)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
3
1
1
2
1
4
2
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
.
76
52
74
47
73
78
63
78
43
40
79
45
61
51
69
43
46
76
60
(i)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
4
1
3
3
1
2
5
(ii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
4
3
4
3
1
2
5
(iii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
4
3
1
7
1
2
5
(iv)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
4
5
1
3
1
2
3
(v)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
4
3
1
3
1
2
5
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
17
students, taking class size
2
.
16
15
17
20
15
10
13
21
18
13
22
12
22
23
22
15
18
(i)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
1
4
3
2
2
2
3
(ii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
1
3
8
2
2
2
4
(iii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
1
3
3
6
2
2
4
(iv)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
1
3
3
2
2
2
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
30
.
297
217
281
236
227
270
289
278
224
228
235
246
296
280
270
259
266
289
270
(i)
Wages (in rupees)
217 - 246
247 - 276
277 - 306
No. of Workers
7
5
7
(ii)
Wages (in rupees)
217 - 246
247 - 276
277 - 306
No. of Workers
5
7
7
(iii)
Wages (in rupees)
217 - 246
247 - 276
277 - 306
No. of Workers
7
3
7
(iv)
Wages (in rupees)
217 - 246
247 - 276
277 - 306
No. of Workers
7
2
7
Question
6
6.
The daily wages (in rupees) of
20
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in exclusive form
taking class size
20
.
239
279
257
220
221
231
275
212
204
263
205
275
249
248
272
295
266
270
221
291
(i)
Wages (in rupees)
204 - 224
224 - 244
244 - 264
264 - 284
284 - 304
No. of Workers
6
2
1
6
2
(ii)
Wages (in rupees)
204 - 224
224 - 244
244 - 264
264 - 284
284 - 304
No. of Workers
6
6
4
6
2
(iii)
Wages (in rupees)
204 - 224
224 - 244
244 - 264
264 - 284
284 - 304
No. of Workers
6
4
2
6
2
(iv)
Wages (in rupees)
204 - 224
224 - 244
244 - 264
264 - 284
284 - 304
No. of Workers
6
2
4
6
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
40
.
272
308
396
293
226
368
307
332
400
208
323
397
387
256
230
273
352
354
275
291
(i)
Weight (in gm)
208 - 247
248 - 287
288 - 327
328 - 367
368 - 407
No. of Fruits
3
1
5
3
5
(ii)
Weight (in gm)
208 - 247
248 - 287
288 - 327
328 - 367
368 - 407
No. of Fruits
3
5
5
3
4
(iii)
Weight (in gm)
208 - 247
248 - 287
288 - 327
328 - 367
368 - 407
No. of Fruits
3
5
4
3
5
(iv)
Weight (in gm)
208 - 247
248 - 287
288 - 327
328 - 367
368 - 407
No. of Fruits
3
4
10
3
5
(v)
Weight (in gm)
208 - 247
248 - 287
288 - 327
328 - 367
368 - 407
No. of Fruits
3
4
5
3
5
Question
8
8.
The weights (in gm) of
17
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
40
.
206
297
393
290
399
332
264
220
255
211
373
267
261
325
314
397
254
(i)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
3
4
4
1
5
(ii)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
3
4
5
1
4
(iii)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
3
5
2
1
4
(iv)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
3
5
4
1
4
(v)
Weight (in gm)
206 - 246
246 - 286
286 - 326
326 - 366
366 - 406
No. of Fruits
3
10
4
1
4
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
3
as min value and a class size of
6
.
33
36
9
15
37
48
8
3
44
6
31
10
39
14
11
44
45
42
17
9
(i)
Class-Interval
3 - 9
9 - 15
15 - 21
21 - 27
27 - 33
33 - 39
39 - 45
45 - 51
Frequency
3
5
2
0
1
3
4
2
(ii)
Class-Interval
3 - 8
9 - 14
15 - 20
21 - 26
27 - 32
33 - 38
39 - 44
45 - 50
Frequency
3
2
2
0
1
3
4
5
(iii)
Class-Interval
3 - 8
9 - 14
15 - 20
21 - 26
27 - 32
33 - 38
39 - 44
45 - 50
Frequency
3
5
0
2
1
3
4
2
(iv)
Class-Interval
3 - 8
9 - 14
15 - 20
21 - 26
27 - 32
33 - 38
39 - 44
45 - 50
Frequency
3
5
4
0
1
3
4
2
(v)
Class-Interval
3 - 8
9 - 14
15 - 20
21 - 26
27 - 32
33 - 38
39 - 44
45 - 50
Frequency
3
5
2
0
1
3
4
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
.
32
31
6
35
31
1
39
10
23
30
12
14
2
46
7
9
17
1
42
5
(i)
Class-Interval
1 - 6
7 - 12
13 - 18
19 - 24
25 - 30
31 - 36
37 - 42
43 - 48
Frequency
5
4
2
1
1
4
2
1
(ii)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
Frequency
5
4
7
1
1
4
2
1
(iii)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
Frequency
5
4
2
1
1
4
2
1
(iv)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
Frequency
5
1
2
1
1
4
2
4
(v)
Class-Interval
1 - 7
7 - 13
13 - 19
19 - 25
25 - 31
31 - 37
37 - 43
43 - 49
Frequency
5
4
1
2
1
4
2
1
Assignment Key
1) (ii)
2) (iv)
3) (v)
4) (iv)
5) (i)
6) (iv)
7) (v)
8) (iv)
9) (v)
10) (iii)
