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
15
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
.
61
53
71
80
69
61
40
52
76
47
66
79
71
58
57
(i)
Marks
40 - 47
48 - 55
56 - 63
64 - 71
72 - 79
80 - 87
No. of Students
2
2
4
4
2
1
(ii)
Marks
40 - 47
48 - 55
56 - 63
64 - 71
72 - 79
80 - 87
No. of Students
2
2
4
2
2
1
(iii)
Marks
40 - 47
48 - 55
56 - 63
64 - 71
72 - 79
80 - 87
No. of Students
2
2
9
4
2
1
(iv)
Marks
40 - 47
48 - 55
56 - 63
64 - 71
72 - 79
80 - 87
No. of Students
2
1
4
4
2
2
(v)
Marks
40 - 47
48 - 55
56 - 63
64 - 71
72 - 79
80 - 87
No. of Students
2
4
2
4
2
1
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
7
.
43
64
45
43
46
55
44
71
58
78
45
66
60
79
66
42
(i)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
7
2
2
3
1
1
(ii)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
7
1
2
8
1
2
(iii)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
7
1
4
3
1
2
(iv)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
7
2
1
3
1
2
(v)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
7
1
2
3
1
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
8
.
68
54
78
74
47
76
67
56
74
55
72
66
74
48
67
43
46
61
(i)
Marks
43 - 51
51 - 59
59 - 67
67 - 75
75 - 83
No. of Students
4
2
2
7
3
(ii)
Marks
43 - 51
51 - 59
59 - 67
67 - 75
75 - 83
No. of Students
4
7
2
7
2
(iii)
Marks
43 - 51
51 - 59
59 - 67
67 - 75
75 - 83
No. of Students
4
3
2
7
2
(iv)
Marks
43 - 51
51 - 59
59 - 67
67 - 75
75 - 83
No. of Students
4
2
3
7
2
(v)
Marks
43 - 51
51 - 59
59 - 67
67 - 75
75 - 83
No. of Students
4
3
5
7
2
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
18
students, taking class size
2
.
24
22
16
20
22
14
10
17
15
20
10
12
16
24
13
24
24
22
(i)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
2
2
2
3
5
2
3
4
(ii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
2
2
3
2
0
2
3
4
(iii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
2
2
6
3
0
2
3
4
(iv)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
2
4
2
3
0
2
3
2
(v)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
2
2
2
3
0
2
3
4
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
.
210
274
256
258
289
243
263
279
238
269
218
236
290
284
213
214
260
(i)
Wages (in rupees)
210 - 239
240 - 269
270 - 299
No. of Workers
5
6
6
(ii)
Wages (in rupees)
210 - 239
240 - 269
270 - 299
No. of Workers
6
1
5
(iii)
Wages (in rupees)
210 - 239
240 - 269
270 - 299
No. of Workers
6
6
5
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
20
.
239
206
239
241
265
239
239
259
246
215
272
256
200
281
214
210
228
220
(i)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
5
1
4
2
6
(ii)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
5
6
4
2
1
(iii)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
5
6
9
2
1
(iv)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
5
4
4
2
1
(v)
Wages (in rupees)
200 - 220
220 - 240
240 - 260
260 - 280
280 - 300
No. of Workers
5
4
6
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
.
274
304
322
319
236
279
249
248
380
296
390
291
380
211
351
232
325
333
369
(i)
Weight (in gm)
211 - 260
261 - 310
311 - 360
361 - 410
No. of Fruits
5
5
3
4
(ii)
Weight (in gm)
211 - 260
261 - 310
311 - 360
361 - 410
No. of Fruits
5
3
5
4
(iii)
Weight (in gm)
211 - 260
261 - 310
311 - 360
361 - 410
No. of Fruits
4
5
5
5
(iv)
Weight (in gm)
211 - 260
261 - 310
311 - 360
361 - 410
No. of Fruits
5
5
5
4
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
.
256
307
363
219
332
373
371
325
214
394
309
301
331
262
235
254
388
(i)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
2
6
3
3
(ii)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
3
6
3
2
(iii)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
3
8
3
2
(iv)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
8
6
3
2
(v)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
6
3
3
2
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
12
as min value and a class size of
6
.
13
43
16
15
33
35
24
44
24
13
17
34
12
16
32
32
41
(i)
Class-Interval
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
Frequency
7
2
0
5
1
2
(ii)
Class-Interval
12 - 18
18 - 24
24 - 30
30 - 36
36 - 42
42 - 48
Frequency
7
0
2
5
1
2
(iii)
Class-Interval
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
Frequency
7
0
2
5
1
2
(iv)
Class-Interval
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
Frequency
7
2
2
5
1
0
(v)
Class-Interval
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
Frequency
7
0
4
5
1
2
Question
10
10.
Given the sample data, prepare the class interval table in
exclusive
form with
3
as min value and a class size of
10
.
11
17
30
40
26
45
23
6
17
3
31
39
8
47
28
24
4
(i)
Class-Interval
3 - 12
13 - 22
23 - 32
33 - 42
43 - 52
Frequency
5
2
6
2
2
(ii)
Class-Interval
3 - 13
13 - 23
23 - 33
33 - 43
43 - 53
Frequency
5
2
6
2
2
(iii)
Class-Interval
3 - 13
13 - 23
23 - 33
33 - 43
43 - 53
Frequency
5
4
6
2
2
(iv)
Class-Interval
3 - 13
13 - 23
23 - 33
33 - 43
43 - 53
Frequency
5
6
2
2
2
Assignment Key
1) (i)
2) (v)
3) (iii)
4) (v)
5) (iii)
6) (ii)
7) (iv)
8) (ii)
9) (iii)
10) (ii)
