EduSahara™ Assignment
Name : Constructing Class Interval Tables
Chapter : Statistics
Grade : SSC 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
.
58
71
47
42
40
59
79
74
61
68
69
78
55
58
41
63
(i)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
1
1
2
4
2
(ii)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
1
4
6
4
2
(iii)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
2
4
2
4
1
(iv)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
4
1
2
4
2
(v)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
3
1
4
2
4
2
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
.
57
64
71
69
43
54
76
40
57
58
54
52
60
44
56
53
67
(i)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
0
4
4
7
2
1
1
(ii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
1
4
4
2
2
1
0
(iii)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
0
4
4
2
2
1
1
(iv)
Marks
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
No. of Students
3
0
8
4
2
2
1
1
Question
3
3.
The marks obtained by
20
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
.
62
71
76
75
48
65
42
48
61
64
76
63
79
67
72
67
77
56
62
46
(i)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
2
1
2
6
3
5
1
(ii)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
2
1
1
6
3
5
2
(iii)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
2
2
3
6
3
5
1
(iv)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
2
2
1
6
3
5
1
(v)
Marks
42 - 48
48 - 54
54 - 60
60 - 66
66 - 72
72 - 78
78 - 84
No. of Students
2
2
1
1
3
5
1
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
15
students, taking class size
4
.
11
16
25
11
22
10
24
25
21
16
17
21
10
23
16
(i)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
4
2
4
5
(ii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
4
7
2
5
(iii)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
4
4
6
5
(iv)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
4
4
2
5
(v)
Age (in years)
10 - 14
14 - 18
18 - 22
22 - 26
No. of Students
5
4
2
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
.
278
223
205
287
267
239
283
241
261
215
276
213
213
268
229
242
288
(i)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
6
4
7
(ii)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
7
4
6
(iii)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
6
8
7
(iv)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
6
9
7
(v)
Wages (in rupees)
205 - 234
235 - 264
265 - 294
No. of Workers
4
6
7
Question
6
6.
The daily wages (in rupees) of
15
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in exclusive form
taking class size
20
.
283
213
215
277
234
296
281
226
228
229
231
236
221
226
280
(i)
Wages (in rupees)
213 - 233
233 - 253
253 - 273
273 - 293
293 - 313
No. of Workers
8
0
2
4
1
(ii)
Wages (in rupees)
213 - 233
233 - 253
253 - 273
273 - 293
293 - 313
No. of Workers
8
1
0
4
2
(iii)
Wages (in rupees)
213 - 233
233 - 253
253 - 273
273 - 293
293 - 313
No. of Workers
8
2
0
4
1
(iv)
Wages (in rupees)
213 - 233
233 - 253
253 - 273
273 - 293
293 - 313
No. of Workers
8
2
4
4
1
(v)
Wages (in rupees)
213 - 233
233 - 253
253 - 273
273 - 293
293 - 313
No. of Workers
8
7
0
4
1
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
40
.
228
390
212
374
378
258
324
395
351
294
338
264
337
400
343
395
217
(i)
Weight (in gm)
212 - 251
252 - 291
292 - 331
332 - 371
372 - 411
No. of Fruits
3
2
2
4
6
(ii)
Weight (in gm)
212 - 251
252 - 291
292 - 331
332 - 371
372 - 411
No. of Fruits
3
6
2
4
2
(iii)
Weight (in gm)
212 - 251
252 - 291
292 - 331
332 - 371
372 - 411
No. of Fruits
3
2
4
4
6
(iv)
Weight (in gm)
212 - 251
252 - 291
292 - 331
332 - 371
372 - 411
No. of Fruits
3
5
2
4
6
Question
8
8.
The weights (in gm) of
19
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
50
.
238
232
332
247
240
311
347
225
289
331
398
369
353
205
274
300
329
328
326
(i)
Weight (in gm)
205 - 255
255 - 305
305 - 355
355 - 405
No. of Fruits
6
3
5
2
(ii)
Weight (in gm)
205 - 255
255 - 305
305 - 355
355 - 405
No. of Fruits
6
8
8
2
(iii)
Weight (in gm)
205 - 255
255 - 305
305 - 355
355 - 405
No. of Fruits
6
3
8
2
(iv)
Weight (in gm)
205 - 255
255 - 305
305 - 355
355 - 405
No. of Fruits
2
3
8
6
(v)
Weight (in gm)
205 - 255
255 - 305
305 - 355
355 - 405
No. of Fruits
6
8
3
2
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
6
.
17
26
46
8
25
50
42
12
7
37
40
6
35
50
8
(i)
Class-Interval
6 - 11
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
48 - 53
Frequency
4
2
2
2
1
2
2
2
(ii)
Class-Interval
6 - 12
12 - 18
18 - 24
24 - 30
30 - 36
36 - 42
42 - 48
48 - 54
Frequency
4
2
0
2
1
2
2
2
(iii)
Class-Interval
6 - 11
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
48 - 53
Frequency
4
2
0
2
1
2
2
2
(iv)
Class-Interval
6 - 11
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
48 - 53
Frequency
4
2
2
0
1
2
2
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
.
41
31
42
1
23
36
25
41
10
21
48
16
9
21
18
35
1
(i)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
3
3
4
3
3
1
(ii)
Class-Interval
1 - 9
10 - 18
19 - 27
28 - 36
37 - 45
46 - 54
Frequency
3
3
4
3
3
1
(iii)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
3
1
4
3
3
3
(iv)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
3
4
3
3
3
1
(v)
Class-Interval
1 - 10
10 - 19
19 - 28
28 - 37
37 - 46
46 - 55
Frequency
3
3
8
3
3
1
Assignment Key
1) (v)
2) (iii)
3) (iv)
4) (iv)
5) (i)
6) (iii)
7) (i)
8) (iii)
9) (iii)
10) (i)
