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
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
7
.
71
50
77
72
46
43
62
47
66
75
42
51
66
45
70
72
(i)
Marks
42 - 48
49 - 55
56 - 62
63 - 69
70 - 76
77 - 83
No. of Students
5
2
1
2
5
1
(ii)
Marks
42 - 48
49 - 55
56 - 62
63 - 69
70 - 76
77 - 83
No. of Students
5
2
4
2
5
1
(iii)
Marks
42 - 48
49 - 55
56 - 62
63 - 69
70 - 76
77 - 83
No. of Students
5
2
1
7
5
1
(iv)
Marks
42 - 48
49 - 55
56 - 62
63 - 69
70 - 76
77 - 83
No. of Students
5
1
1
2
5
2
(v)
Marks
42 - 48
49 - 55
56 - 62
63 - 69
70 - 76
77 - 83
No. of Students
5
1
2
2
5
1
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
.
77
40
48
80
72
76
53
42
58
63
40
61
73
43
45
(i)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
No. of Students
4
2
1
5
2
0
2
2
1
(ii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
No. of Students
4
1
1
1
2
0
2
2
2
(iii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
No. of Students
4
2
1
1
2
0
2
2
1
(iv)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
No. of Students
4
2
1
1
7
0
2
2
1
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
.
46
74
52
68
64
68
48
43
43
77
44
48
74
65
60
42
40
49
70
(i)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
4
6
1
4
3
1
(ii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
4
1
3
4
3
1
(iii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
1
4
1
4
3
1
(iv)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
4
1
1
4
3
1
(v)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
5
1
1
1
4
3
4
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
17
students, taking class size
3
.
18
12
21
12
22
16
21
11
19
23
22
16
19
23
14
23
22
(i)
Age (in years)
11 - 14
14 - 17
17 - 20
20 - 23
23 - 26
No. of Students
3
3
8
5
3
(ii)
Age (in years)
11 - 14
14 - 17
17 - 20
20 - 23
23 - 26
No. of Students
3
3
3
5
3
(iii)
Age (in years)
11 - 14
14 - 17
17 - 20
20 - 23
23 - 26
No. of Students
3
7
3
5
3
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
.
276
237
229
213
270
283
209
290
206
226
289
237
216
274
205
232
230
279
(i)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
9
2
7
(ii)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
7
2
9
(iii)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
9
7
7
(iv)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
2
9
7
(v)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
9
4
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
30
.
220
267
258
211
215
215
293
300
255
271
286
212
260
257
273
286
282
210
255
253
(i)
Wages (in rupees)
210 - 240
240 - 270
270 - 300
300 - 330
No. of Workers
6
7
6
1
(ii)
Wages (in rupees)
210 - 240
240 - 270
270 - 300
300 - 330
No. of Workers
6
7
3
1
(iii)
Wages (in rupees)
210 - 240
240 - 270
270 - 300
300 - 330
No. of Workers
1
7
6
6
(iv)
Wages (in rupees)
210 - 240
240 - 270
270 - 300
300 - 330
No. of Workers
6
6
7
1
(v)
Wages (in rupees)
210 - 240
240 - 270
270 - 300
300 - 330
No. of Workers
6
4
6
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
.
323
257
298
284
324
227
289
299
322
312
222
392
260
322
324
259
364
231
208
(i)
Weight (in gm)
208 - 257
258 - 307
308 - 357
358 - 407
No. of Fruits
5
9
6
2
(ii)
Weight (in gm)
208 - 257
258 - 307
308 - 357
358 - 407
No. of Fruits
5
6
11
2
(iii)
Weight (in gm)
208 - 257
258 - 307
308 - 357
358 - 407
No. of Fruits
2
6
6
5
(iv)
Weight (in gm)
208 - 257
258 - 307
308 - 357
358 - 407
No. of Fruits
5
6
6
2
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
50
.
337
212
214
315
308
263
281
349
324
317
359
242
381
368
305
377
(i)
Weight (in gm)
212 - 262
262 - 312
312 - 362
362 - 412
No. of Fruits
3
1
6
3
(ii)
Weight (in gm)
212 - 262
262 - 312
312 - 362
362 - 412
No. of Fruits
3
6
4
3
(iii)
Weight (in gm)
212 - 262
262 - 312
312 - 362
362 - 412
No. of Fruits
3
4
6
3
(iv)
Weight (in gm)
212 - 262
262 - 312
312 - 362
362 - 412
No. of Fruits
3
4
1
3
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
6
as min value and a class size of
10
.
19
24
13
13
19
14
12
25
33
13
37
31
26
20
6
28
12
34
37
27
(i)
Class-Interval
6 - 15
16 - 25
26 - 35
36 - 45
Frequency
2
5
6
7
(ii)
Class-Interval
6 - 15
16 - 25
26 - 35
36 - 45
Frequency
7
6
5
2
(iii)
Class-Interval
6 - 16
16 - 26
26 - 36
36 - 46
Frequency
7
5
6
2
(iv)
Class-Interval
6 - 15
16 - 25
26 - 35
36 - 45
Frequency
7
10
6
2
(v)
Class-Interval
6 - 15
16 - 25
26 - 35
36 - 45
Frequency
7
5
6
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
9
.
47
18
39
16
24
45
39
1
16
18
27
1
22
24
15
25
37
30
24
(i)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
2
5
6
1
4
1
(ii)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
2
6
5
1
4
1
(iii)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
2
5
1
1
4
1
(iv)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
2
1
6
1
4
5
(v)
Class-Interval
1 - 9
10 - 18
19 - 27
28 - 36
37 - 45
46 - 54
Frequency
2
5
6
1
4
1
Assignment Key
1) (i)
2) (iii)
3) (iv)
4) (ii)
5) (i)
6) (i)
7) (iv)
8) (iii)
9) (v)
10) (i)
