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
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
5
.
78
44
62
54
77
66
57
48
67
40
78
67
54
45
79
45
50
64
(i)
Marks
40 - 44
45 - 49
50 - 54
55 - 59
60 - 64
65 - 69
70 - 74
75 - 79
No. of Students
2
4
3
1
2
3
0
3
(ii)
Marks
40 - 44
45 - 49
50 - 54
55 - 59
60 - 64
65 - 69
70 - 74
75 - 79
No. of Students
2
3
8
1
2
3
0
4
(iii)
Marks
40 - 44
45 - 49
50 - 54
55 - 59
60 - 64
65 - 69
70 - 74
75 - 79
No. of Students
2
3
3
1
2
3
0
4
(iv)
Marks
40 - 44
45 - 49
50 - 54
55 - 59
60 - 64
65 - 69
70 - 74
75 - 79
No. of Students
2
3
1
3
2
3
0
4
(v)
Marks
40 - 44
45 - 49
50 - 54
55 - 59
60 - 64
65 - 69
70 - 74
75 - 79
No. of Students
2
3
3
1
7
3
0
4
Question
2
2.
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
8
.
70
60
46
72
59
65
76
78
45
41
48
78
49
40
58
65
60
76
(i)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
4
4
3
5
(ii)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
2
8
3
5
(iii)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
4
2
3
5
(iv)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
5
4
3
2
(v)
Marks
40 - 48
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
2
4
3
5
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
.
44
52
56
54
57
72
66
40
57
45
67
51
72
68
65
79
(i)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
1
5
4
4
2
1
(ii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
1
5
0
4
2
1
(iii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
5
1
0
4
2
1
(iv)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
1
10
0
4
2
1
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
19
students, taking class size
3
.
20
19
24
15
24
12
24
15
17
18
20
10
11
19
22
21
18
25
17
(i)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
3
2
4
9
4
1
(ii)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
3
2
4
5
4
1
(iii)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
3
2
8
5
4
1
(iv)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
3
1
4
5
4
2
(v)
Age (in years)
10 - 13
13 - 16
16 - 19
19 - 22
22 - 25
25 - 28
No. of Students
3
4
2
5
4
1
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
30
.
215
293
251
234
246
207
297
299
219
231
295
280
271
246
294
284
256
211
(i)
Wages (in rupees)
207 - 236
237 - 266
267 - 296
297 - 326
No. of Workers
6
6
4
2
(ii)
Wages (in rupees)
207 - 236
237 - 266
267 - 296
297 - 326
No. of Workers
6
4
4
2
(iii)
Wages (in rupees)
207 - 236
237 - 266
267 - 296
297 - 326
No. of Workers
6
1
6
2
(iv)
Wages (in rupees)
207 - 236
237 - 266
267 - 296
297 - 326
No. of Workers
6
4
6
2
(v)
Wages (in rupees)
207 - 236
237 - 266
267 - 296
297 - 326
No. of Workers
2
4
6
6
Question
6
6.
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 exclusive form
taking class size
30
.
283
248
254
230
235
263
201
214
211
264
247
248
292
250
200
275
210
259
297
(i)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
2
8
4
5
(ii)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
5
4
8
2
(iii)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
5
8
4
2
(iv)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
5
11
4
2
(v)
Wages (in rupees)
200 - 230
230 - 260
260 - 290
290 - 320
No. of Workers
5
8
7
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
.
380
288
326
218
202
218
309
349
294
272
238
304
268
296
220
244
360
279
247
351
(i)
Weight (in gm)
202 - 251
252 - 301
302 - 351
352 - 401
No. of Fruits
7
5
6
2
(ii)
Weight (in gm)
202 - 251
252 - 301
302 - 351
352 - 401
No. of Fruits
7
1
5
2
(iii)
Weight (in gm)
202 - 251
252 - 301
302 - 351
352 - 401
No. of Fruits
2
6
5
7
(iv)
Weight (in gm)
202 - 251
252 - 301
302 - 351
352 - 401
No. of Fruits
7
6
5
2
(v)
Weight (in gm)
202 - 251
252 - 301
302 - 351
352 - 401
No. of Fruits
7
6
10
2
Question
8
8.
The weights (in gm) of
18
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
40
.
373
214
336
223
301
306
371
362
390
370
317
286
311
329
251
302
272
307
(i)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
2
7
5
1
(ii)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
1
7
5
2
(iii)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
2
11
5
1
(iv)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
7
2
5
1
(v)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
6
7
5
1
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
2
as min value and a class size of
5
.
43
8
38
39
12
40
27
4
9
35
11
27
18
15
43
45
23
26
2
20
(i)
Class-Interval
2 - 6
7 - 11
12 - 16
17 - 21
22 - 26
27 - 31
32 - 36
37 - 41
42 - 46
Frequency
2
3
2
4
2
2
1
3
3
(ii)
Class-Interval
2 - 6
7 - 11
12 - 16
17 - 21
22 - 26
27 - 31
32 - 36
37 - 41
42 - 46
Frequency
2
3
2
2
2
2
1
3
3
(iii)
Class-Interval
2 - 7
7 - 12
12 - 17
17 - 22
22 - 27
27 - 32
32 - 37
37 - 42
42 - 47
Frequency
2
3
2
2
2
2
1
3
3
Question
10
10.
Given the sample data, prepare the class interval table in
exclusive
form with
9
as min value and a class size of
5
.
34
47
19
9
35
45
16
47
26
40
48
23
37
46
43
36
22
14
(i)
Class-Interval
9 - 14
14 - 19
19 - 24
24 - 29
29 - 34
34 - 39
39 - 44
44 - 49
Frequency
1
2
6
1
0
4
2
5
(ii)
Class-Interval
9 - 14
14 - 19
19 - 24
24 - 29
29 - 34
34 - 39
39 - 44
44 - 49
Frequency
1
2
1
3
0
4
2
5
(iii)
Class-Interval
9 - 13
14 - 18
19 - 23
24 - 28
29 - 33
34 - 38
39 - 43
44 - 48
Frequency
1
2
3
1
0
4
2
5
(iv)
Class-Interval
9 - 14
14 - 19
19 - 24
24 - 29
29 - 34
34 - 39
39 - 44
44 - 49
Frequency
1
2
3
1
0
4
2
5
(v)
Class-Interval
9 - 14
14 - 19
19 - 24
24 - 29
29 - 34
34 - 39
39 - 44
44 - 49
Frequency
1
5
3
1
0
4
2
2
Assignment Key
1) (iii)
2) (v)
3) (ii)
4) (ii)
5) (iv)
6) (iii)
7) (iv)
8) (i)
9) (ii)
10) (iv)
