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
.
78
54
51
57
40
50
45
45
78
42
77
64
65
79
44
78
(i)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
5
2
2
2
0
5
(ii)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
5
5
2
2
0
2
(iii)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
5
2
2
6
0
5
(iv)
Marks
40 - 46
47 - 53
54 - 60
61 - 67
68 - 74
75 - 81
No. of Students
5
2
5
2
0
5
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
.
71
64
64
65
65
74
79
75
74
74
51
51
64
71
80
(i)
Marks
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
76 - 81
No. of Students
2
5
0
0
6
2
(ii)
Marks
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
76 - 81
No. of Students
2
0
3
0
6
2
(iii)
Marks
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
76 - 81
No. of Students
2
0
5
0
6
2
(iv)
Marks
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
76 - 81
No. of Students
2
2
5
0
6
0
(v)
Marks
51 - 56
56 - 61
61 - 66
66 - 71
71 - 76
76 - 81
No. of Students
2
0
5
5
6
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
6
.
55
55
65
45
77
68
62
42
61
58
74
75
76
74
48
75
40
(i)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
2
1
3
2
4
2
(ii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
1
2
3
2
4
2
(iii)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
2
2
3
2
4
1
(iv)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
1
4
3
2
4
2
(v)
Marks
40 - 46
46 - 52
52 - 58
58 - 64
64 - 70
70 - 76
76 - 82
No. of Students
3
1
2
8
2
4
2
Question
4
4.
Construct a frequency table
in exclusive form
for the following
ages (in years) of
18
students, taking class size
2
.
16
22
19
15
21
12
17
19
17
19
18
14
24
25
18
15
25
17
(i)
Age (in years)
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
1
3
4
5
1
1
3
(ii)
Age (in years)
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
1
4
3
5
1
1
3
(iii)
Age (in years)
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
1
3
4
3
1
1
3
(iv)
Age (in years)
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
24 - 26
No. of Students
1
3
7
5
1
1
3
Question
5
5.
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 inclusive form
taking class size
30
.
250
216
239
220
208
276
250
228
204
287
242
259
277
217
235
227
231
271
296
257
(i)
Wages (in rupees)
204 - 233
234 - 263
264 - 293
294 - 323
No. of Workers
8
4
4
1
(ii)
Wages (in rupees)
204 - 233
234 - 263
264 - 293
294 - 323
No. of Workers
1
7
4
8
(iii)
Wages (in rupees)
204 - 233
234 - 263
264 - 293
294 - 323
No. of Workers
8
7
2
1
(iv)
Wages (in rupees)
204 - 233
234 - 263
264 - 293
294 - 323
No. of Workers
8
4
7
1
(v)
Wages (in rupees)
204 - 233
234 - 263
264 - 293
294 - 323
No. of Workers
8
7
4
1
Question
6
6.
The daily wages (in rupees) of
19
workers in a factory are given below.
Represent the data in the form of a frequency distribution
in exclusive form
taking class size
30
.
229
279
243
271
252
290
294
262
290
209
241
218
287
249
282
264
287
207
230
(i)
Wages (in rupees)
207 - 237
237 - 267
267 - 297
No. of Workers
5
6
8
(ii)
Wages (in rupees)
207 - 237
237 - 267
267 - 297
No. of Workers
5
2
8
(iii)
Wages (in rupees)
207 - 237
237 - 267
267 - 297
No. of Workers
8
6
5
(iv)
Wages (in rupees)
207 - 237
237 - 267
267 - 297
No. of Workers
6
5
8
(v)
Wages (in rupees)
207 - 237
237 - 267
267 - 297
No. of Workers
5
3
8
Question
7
7.
The weights (in gm) of
15
fruits are as follows.
Form the grouped frequency table
in inclusive form
by taking class size
50
.
347
278
273
272
233
239
386
400
229
355
258
378
230
232
393
(i)
Weight (in gm)
229 - 278
279 - 328
329 - 378
379 - 428
No. of Fruits
3
0
3
9
(ii)
Weight (in gm)
229 - 278
279 - 328
329 - 378
379 - 428
No. of Fruits
9
3
0
3
(iii)
Weight (in gm)
229 - 278
279 - 328
329 - 378
379 - 428
No. of Fruits
9
5
3
3
(iv)
Weight (in gm)
229 - 278
279 - 328
329 - 378
379 - 428
No. of Fruits
9
0
8
3
(v)
Weight (in gm)
229 - 278
279 - 328
329 - 378
379 - 428
No. of Fruits
9
0
3
3
Question
8
8.
The weights (in gm) of
20
fruits are as follows.
Form the grouped frequency table
in exclusive form
by taking class size
50
.
301
391
399
345
335
386
332
200
203
343
224
272
289
379
335
233
395
294
376
373
(i)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
4
8
6
7
(ii)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
4
3
2
7
(iii)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
7
3
6
4
(iv)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
4
6
3
7
(v)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
4
3
6
7
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
12
as min value and a class size of
6
.
22
36
44
42
45
17
25
12
50
36
33
44
16
14
41
37
28
(i)
Class-Interval
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
48 - 53
Frequency
4
1
2
1
4
4
1
(ii)
Class-Interval
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
48 - 53
Frequency
4
1
6
1
4
4
1
(iii)
Class-Interval
12 - 17
18 - 23
24 - 29
30 - 35
36 - 41
42 - 47
48 - 53
Frequency
4
2
1
1
4
4
1
(iv)
Class-Interval
12 - 18
18 - 24
24 - 30
30 - 36
36 - 42
42 - 48
48 - 54
Frequency
4
1
2
1
4
4
1
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
5
.
32
19
29
45
32
20
48
9
26
9
36
3
7
45
40
31
(i)
Class-Interval
3 - 8
8 - 13
13 - 18
18 - 23
23 - 28
28 - 33
33 - 38
38 - 43
43 - 48
48 - 53
Frequency
2
0
2
2
1
4
1
1
2
1
(ii)
Class-Interval
3 - 8
8 - 13
13 - 18
18 - 23
23 - 28
28 - 33
33 - 38
38 - 43
43 - 48
48 - 53
Frequency
2
2
0
5
1
4
1
1
2
1
(iii)
Class-Interval
3 - 8
8 - 13
13 - 18
18 - 23
23 - 28
28 - 33
33 - 38
38 - 43
43 - 48
48 - 53
Frequency
2
2
2
0
1
4
1
1
2
1
(iv)
Class-Interval
3 - 7
8 - 12
13 - 17
18 - 22
23 - 27
28 - 32
33 - 37
38 - 42
43 - 47
48 - 52
Frequency
2
2
0
2
1
4
1
1
2
1
(v)
Class-Interval
3 - 8
8 - 13
13 - 18
18 - 23
23 - 28
28 - 33
33 - 38
38 - 43
43 - 48
48 - 53
Frequency
2
2
0
2
1
4
1
1
2
1
Assignment Key
1) (i)
2) (iii)
3) (ii)
4) (i)
5) (v)
6) (i)
7) (v)
8) (v)
9) (i)
10) (v)
