EduSahara™ Assignment
Name : Constructing Class Interval Tables
Chapter : Statistics
Grade : SSC Grade IX
License : Non Commercial Use
Question
1
1.
The marks obtained by
19
students in an examination are given below.
Represent the data in the form of a frequency distribution table
in inclusive form
taking class size
6
.
54
40
75
49
55
59
62
54
50
68
52
52
53
63
57
57
45
49
63
(i)
Marks
40 - 45
46 - 51
52 - 57
58 - 63
64 - 69
70 - 75
No. of Students
2
3
11
4
1
1
(ii)
Marks
40 - 45
46 - 51
52 - 57
58 - 63
64 - 69
70 - 75
No. of Students
2
8
3
4
1
1
(iii)
Marks
40 - 45
46 - 51
52 - 57
58 - 63
64 - 69
70 - 75
No. of Students
2
3
8
8
1
1
(iv)
Marks
40 - 45
46 - 51
52 - 57
58 - 63
64 - 69
70 - 75
No. of Students
2
3
8
4
1
1
(v)
Marks
40 - 45
46 - 51
52 - 57
58 - 63
64 - 69
70 - 75
No. of Students
2
1
8
4
1
3
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
5
.
76
55
71
54
76
51
69
54
80
58
50
73
73
53
77
80
78
78
(i)
Marks
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
No. of Students
5
2
3
1
3
5
2
(ii)
Marks
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
No. of Students
5
2
0
1
3
5
2
(iii)
Marks
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
No. of Students
5
0
2
1
3
5
2
(iv)
Marks
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
80 - 85
No. of Students
5
2
0
6
3
5
2
Question
3
3.
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
8
.
65
76
43
54
77
45
43
43
47
79
63
52
41
53
52
64
73
(i)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
6
2
2
1
4
(ii)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
6
2
4
1
4
(iii)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
6
4
7
1
4
(iv)
Marks
41 - 49
49 - 57
57 - 65
65 - 73
73 - 81
No. of Students
6
4
2
1
4
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
15
students, taking class size
2
.
20
10
25
11
16
11
10
20
22
21
18
23
23
16
17
(i)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
4
0
3
0
1
3
3
1
(ii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
4
0
4
3
1
3
3
1
(iii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
4
0
0
3
1
3
3
1
(iv)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
4
1
0
3
1
3
3
0
(v)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
4
0
0
3
5
3
3
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
20
.
237
238
201
227
295
244
297
269
226
295
222
247
237
271
221
283
291
210
(i)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
2
5
2
2
7
(ii)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
2
7
2
2
5
(iii)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
2
7
6
2
5
(iv)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
2
10
2
2
5
(v)
Wages (in rupees)
201 - 220
221 - 240
241 - 260
261 - 280
281 - 300
No. of Workers
2
2
7
2
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
30
.
296
237
216
272
215
281
238
237
250
282
242
223
285
272
216
243
254
218
(i)
Wages (in rupees)
215 - 245
245 - 275
275 - 305
No. of Workers
10
4
4
(ii)
Wages (in rupees)
215 - 245
245 - 275
275 - 305
No. of Workers
10
9
4
(iii)
Wages (in rupees)
215 - 245
245 - 275
275 - 305
No. of Workers
4
10
4
(iv)
Wages (in rupees)
215 - 245
245 - 275
275 - 305
No. of Workers
4
4
10
(v)
Wages (in rupees)
215 - 245
245 - 275
275 - 305
No. of Workers
10
8
4
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
40
.
229
216
294
304
278
279
270
371
367
257
395
320
213
286
337
362
265
297
320
(i)
Weight (in gm)
213 - 252
253 - 292
293 - 332
333 - 372
373 - 412
No. of Fruits
3
6
7
4
1
(ii)
Weight (in gm)
213 - 252
253 - 292
293 - 332
333 - 372
373 - 412
No. of Fruits
3
11
5
4
1
(iii)
Weight (in gm)
213 - 252
253 - 292
293 - 332
333 - 372
373 - 412
No. of Fruits
3
1
5
4
6
(iv)
Weight (in gm)
213 - 252
253 - 292
293 - 332
333 - 372
373 - 412
No. of Fruits
3
6
5
4
1
(v)
Weight (in gm)
213 - 252
253 - 292
293 - 332
333 - 372
373 - 412
No. of Fruits
3
5
6
4
1
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
50
.
373
295
365
359
261
253
367
339
229
306
320
330
302
281
386
211
269
(i)
Weight (in gm)
211 - 261
261 - 311
311 - 361
361 - 411
No. of Fruits
3
6
4
4
(ii)
Weight (in gm)
211 - 261
261 - 311
311 - 361
361 - 411
No. of Fruits
3
4
6
4
(iii)
Weight (in gm)
211 - 261
261 - 311
311 - 361
361 - 411
No. of Fruits
3
11
4
4
(iv)
Weight (in gm)
211 - 261
261 - 311
311 - 361
361 - 411
No. of Fruits
3
6
8
4
(v)
Weight (in gm)
211 - 261
261 - 311
311 - 361
361 - 411
No. of Fruits
4
6
4
3
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
13
as min value and a class size of
10
.
43
37
21
49
14
50
25
41
21
35
41
35
13
19
19
15
46
(i)
Class-Interval
13 - 22
23 - 32
33 - 42
43 - 52
Frequency
7
5
5
4
(ii)
Class-Interval
13 - 23
23 - 33
33 - 43
43 - 53
Frequency
7
1
5
4
(iii)
Class-Interval
13 - 22
23 - 32
33 - 42
43 - 52
Frequency
4
1
5
7
(iv)
Class-Interval
13 - 22
23 - 32
33 - 42
43 - 52
Frequency
7
1
5
4
(v)
Class-Interval
13 - 22
23 - 32
33 - 42
43 - 52
Frequency
7
5
1
4
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
10
.
35
4
48
15
17
5
2
42
9
30
14
7
14
44
48
3
1
(i)
Class-Interval
1 - 11
11 - 21
21 - 31
31 - 41
41 - 51
Frequency
7
1
4
1
4
(ii)
Class-Interval
1 - 11
11 - 21
21 - 31
31 - 41
41 - 51
Frequency
7
4
1
1
4
(iii)
Class-Interval
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
Frequency
7
4
1
1
4
(iv)
Class-Interval
1 - 11
11 - 21
21 - 31
31 - 41
41 - 51
Frequency
7
1
1
1
4
Assignment Key
1) (iv)
2) (ii)
3) (iv)
4) (iii)
5) (ii)
6) (i)
7) (iv)
8) (i)
9) (iv)
10) (ii)
