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
16
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
45
50
80
59
74
78
78
76
64
67
60
59
56
80
78
(i)
Marks
45 - 52
53 - 60
61 - 68
69 - 76
77 - 84
No. of Students
2
4
3
2
5
(ii)
Marks
45 - 52
53 - 60
61 - 68
69 - 76
77 - 84
No. of Students
2
3
4
2
5
(iii)
Marks
45 - 52
53 - 60
61 - 68
69 - 76
77 - 84
No. of Students
2
8
3
2
5
(iv)
Marks
45 - 52
53 - 60
61 - 68
69 - 76
77 - 84
No. of Students
2
5
3
2
4
(v)
Marks
45 - 52
53 - 60
61 - 68
69 - 76
77 - 84
No. of Students
2
4
8
2
5
Question
2
2.
The marks obtained by
17
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
.
79
60
62
40
48
45
58
72
75
68
68
70
58
46
72
44
50
(i)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
3
1
2
6
2
3
2
(ii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
2
1
2
2
2
3
3
(iii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
3
4
2
2
2
3
2
(iv)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
3
2
1
2
2
3
2
(v)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
2
3
1
2
2
2
3
2
Question
3
3.
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
7
.
70
49
51
78
40
69
79
59
51
71
63
55
67
59
69
(i)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
1
3
3
5
4
2
(ii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
1
2
3
2
4
3
(iii)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
1
3
8
2
4
2
(iv)
Marks
40 - 47
47 - 54
54 - 61
61 - 68
68 - 75
75 - 82
No. of Students
1
3
3
2
4
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
10
24
25
13
24
24
23
21
15
22
12
13
18
23
17
(i)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
5
2
2
7
(ii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
5
4
2
7
(iii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
5
2
5
7
(iv)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
7
2
2
5
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
.
235
229
247
259
300
208
219
256
246
200
267
231
245
285
208
256
268
(i)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
5
8
8
1
(ii)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
5
8
3
1
(iii)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
1
8
3
5
(iv)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
5
4
3
1
(v)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
5
3
8
1
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
30
.
283
276
261
229
211
240
292
266
233
275
277
277
296
287
234
233
289
(i)
Wages (in rupees)
211 - 241
241 - 271
271 - 301
No. of Workers
2
6
9
(ii)
Wages (in rupees)
211 - 241
241 - 271
271 - 301
No. of Workers
6
2
9
(iii)
Wages (in rupees)
211 - 241
241 - 271
271 - 301
No. of Workers
9
2
6
(iv)
Wages (in rupees)
211 - 241
241 - 271
271 - 301
No. of Workers
6
7
9
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
.
350
221
245
389
360
282
284
374
329
323
386
262
386
241
316
274
302
(i)
Weight (in gm)
221 - 270
271 - 320
321 - 370
371 - 420
No. of Fruits
4
5
7
4
(ii)
Weight (in gm)
221 - 270
271 - 320
321 - 370
371 - 420
No. of Fruits
4
5
4
4
(iii)
Weight (in gm)
221 - 270
271 - 320
321 - 370
371 - 420
No. of Fruits
4
4
5
4
(iv)
Weight (in gm)
221 - 270
271 - 320
321 - 370
371 - 420
No. of Fruits
4
10
4
4
Question
8
8.
The weights (in gm) of
15
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
50
.
336
244
316
376
249
377
308
240
258
382
208
208
226
260
393
(i)
Weight (in gm)
208 - 258
258 - 308
308 - 358
358 - 408
No. of Fruits
6
2
1
4
(ii)
Weight (in gm)
208 - 258
258 - 308
308 - 358
358 - 408
No. of Fruits
6
3
2
4
(iii)
Weight (in gm)
208 - 258
258 - 308
308 - 358
358 - 408
No. of Fruits
4
2
3
6
(iv)
Weight (in gm)
208 - 258
258 - 308
308 - 358
358 - 408
No. of Fruits
6
2
3
4
(v)
Weight (in gm)
208 - 258
258 - 308
308 - 358
358 - 408
No. of Fruits
6
6
3
4
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
1
as min value and a class size of
5
.
1
11
47
38
15
7
49
17
29
39
32
35
39
48
4
43
34
11
(i)
Class-Interval
1 - 5
6 - 10
11 - 15
16 - 20
21 - 25
26 - 30
31 - 35
36 - 40
41 - 45
46 - 50
Frequency
2
3
1
1
0
1
3
3
1
3
(ii)
Class-Interval
1 - 5
6 - 10
11 - 15
16 - 20
21 - 25
26 - 30
31 - 35
36 - 40
41 - 45
46 - 50
Frequency
2
1
1
3
0
1
3
3
1
3
(iii)
Class-Interval
1 - 6
6 - 11
11 - 16
16 - 21
21 - 26
26 - 31
31 - 36
36 - 41
41 - 46
46 - 51
Frequency
2
1
3
1
0
1
3
3
1
3
(iv)
Class-Interval
1 - 5
6 - 10
11 - 15
16 - 20
21 - 25
26 - 30
31 - 35
36 - 40
41 - 45
46 - 50
Frequency
2
1
3
1
0
1
3
3
1
3
(v)
Class-Interval
1 - 5
6 - 10
11 - 15
16 - 20
21 - 25
26 - 30
31 - 35
36 - 40
41 - 45
46 - 50
Frequency
2
1
3
6
0
1
3
3
1
3
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
.
10
31
30
3
47
9
18
5
32
47
16
45
9
48
11
(i)
Class-Interval
3 - 13
13 - 23
23 - 33
33 - 43
43 - 53
Frequency
6
4
3
0
4
(ii)
Class-Interval
3 - 13
13 - 23
23 - 33
33 - 43
43 - 53
Frequency
6
4
3
0
2
(iii)
Class-Interval
3 - 12
13 - 22
23 - 32
33 - 42
43 - 52
Frequency
6
2
3
0
4
(iv)
Class-Interval
3 - 13
13 - 23
23 - 33
33 - 43
43 - 53
Frequency
6
2
3
0
4
(v)
Class-Interval
3 - 13
13 - 23
23 - 33
33 - 43
43 - 53
Frequency
6
3
2
0
4
Assignment Key
1) (i)
2) (v)
3) (iv)
4) (i)
5) (ii)
6) (ii)
7) (ii)
8) (iv)
9) (iv)
10) (iv)
