EduSahara™ Assignment
Name : Constructing Class Interval Tables
Chapter : Statistics
Grade : SSC Grade IX
License : Non Commercial Use
Question
1
1.
The marks obtained by
20
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
.
75
46
70
48
53
59
45
51
72
70
72
59
42
66
45
42
41
45
61
70
(i)
Marks
41 - 46
47 - 52
53 - 58
59 - 64
65 - 70
71 - 76
No. of Students
7
2
1
7
4
3
(ii)
Marks
41 - 46
47 - 52
53 - 58
59 - 64
65 - 70
71 - 76
No. of Students
7
3
1
3
4
2
(iii)
Marks
41 - 46
47 - 52
53 - 58
59 - 64
65 - 70
71 - 76
No. of Students
7
1
2
3
4
3
(iv)
Marks
41 - 46
47 - 52
53 - 58
59 - 64
65 - 70
71 - 76
No. of Students
7
2
1
3
4
3
(v)
Marks
41 - 46
47 - 52
53 - 58
59 - 64
65 - 70
71 - 76
No. of Students
7
2
5
3
4
3
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
5
.
62
76
57
78
69
53
62
70
52
59
66
43
49
69
73
76
(i)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
1
2
3
1
3
3
2
(ii)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
2
6
3
1
3
3
1
(iii)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
2
3
2
1
3
3
1
(iv)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
2
2
3
1
3
3
1
(v)
Marks
43 - 48
48 - 53
53 - 58
58 - 63
63 - 68
68 - 73
73 - 78
78 - 83
No. of Students
1
2
2
3
6
3
3
1
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
.
64
73
75
67
54
48
56
71
75
55
72
66
74
64
55
67
65
65
(i)
Marks
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
1
8
5
(ii)
Marks
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
8
1
5
(iii)
Marks
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
1
6
5
(iv)
Marks
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
4
4
8
5
(v)
Marks
48 - 56
56 - 64
64 - 72
72 - 80
No. of Students
5
1
8
4
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
16
students, taking class size
4
.
21
23
20
21
25
23
24
14
21
16
13
16
19
22
24
13
(i)
Age (in years)
13 - 17
17 - 21
21 - 25
25 - 29
No. of Students
5
8
2
1
(ii)
Age (in years)
13 - 17
17 - 21
21 - 25
25 - 29
No. of Students
5
4
8
1
(iii)
Age (in years)
13 - 17
17 - 21
21 - 25
25 - 29
No. of Students
1
2
8
5
(iv)
Age (in years)
13 - 17
17 - 21
21 - 25
25 - 29
No. of Students
5
2
8
1
(v)
Age (in years)
13 - 17
17 - 21
21 - 25
25 - 29
No. of Students
5
2
3
1
Question
5
5.
The daily wages (in rupees) of
16
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in inclusive form
taking class size
30
.
279
268
263
200
290
229
203
300
282
234
240
286
293
280
284
269
(i)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
3
8
2
3
(ii)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
3
2
8
3
(iii)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
3
2
4
3
(iv)
Wages (in rupees)
200 - 229
230 - 259
260 - 289
290 - 319
No. of Workers
3
4
8
3
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
20
.
259
294
203
235
207
201
281
289
266
298
264
254
274
247
280
228
293
(i)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
2
3
4
5
(ii)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
3
2
4
5
(iii)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
2
6
4
5
(iv)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
5
3
4
5
(v)
Wages (in rupees)
201 - 221
221 - 241
241 - 261
261 - 281
281 - 301
No. of Workers
3
5
3
4
2
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
.
323
328
330
263
385
276
288
256
315
211
362
294
362
289
342
221
264
(i)
Weight (in gm)
211 - 260
261 - 310
311 - 360
361 - 410
No. of Fruits
3
6
9
3
(ii)
Weight (in gm)
211 - 260
261 - 310
311 - 360
361 - 410
No. of Fruits
3
5
6
3
(iii)
Weight (in gm)
211 - 260
261 - 310
311 - 360
361 - 410
No. of Fruits
3
4
5
3
(iv)
Weight (in gm)
211 - 260
261 - 310
311 - 360
361 - 410
No. of Fruits
3
6
5
3
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
40
.
335
216
296
214
267
348
280
392
291
293
341
382
279
217
340
(i)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
5
3
4
2
(ii)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
3
1
4
2
(iii)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
5
1
4
2
(iv)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
2
1
4
5
(v)
Weight (in gm)
214 - 254
254 - 294
294 - 334
334 - 374
374 - 414
No. of Fruits
3
1
5
4
2
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
10
.
24
33
46
50
24
13
1
20
4
19
6
7
17
19
37
19
(i)
Class-Interval
1 - 11
11 - 21
21 - 31
31 - 41
41 - 51
Frequency
4
6
2
2
2
(ii)
Class-Interval
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
Frequency
4
2
2
2
6
(iii)
Class-Interval
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
Frequency
4
6
2
2
2
(iv)
Class-Interval
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
Frequency
4
3
2
2
2
(v)
Class-Interval
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
Frequency
4
2
6
2
2
Question
10
10.
Given the sample data, prepare the class interval table in
exclusive
form with
2
as min value and a class size of
10
.
20
17
30
16
43
2
17
39
39
20
21
9
17
20
24
28
(i)
Class-Interval
2 - 11
12 - 21
22 - 31
32 - 41
42 - 51
Frequency
2
8
3
2
1
(ii)
Class-Interval
2 - 12
12 - 22
22 - 32
32 - 42
42 - 52
Frequency
2
1
3
2
8
(iii)
Class-Interval
2 - 12
12 - 22
22 - 32
32 - 42
42 - 52
Frequency
2
12
3
2
1
(iv)
Class-Interval
2 - 12
12 - 22
22 - 32
32 - 42
42 - 52
Frequency
2
3
8
2
1
(v)
Class-Interval
2 - 12
12 - 22
22 - 32
32 - 42
42 - 52
Frequency
2
8
3
2
1
Assignment Key
1) (iv)
2) (iv)
3) (i)
4) (iv)
5) (ii)
6) (i)
7) (iv)
8) (iii)
9) (iii)
10) (v)
