EduSahara™ Assignment
Name : Constructing Class Interval Tables
Chapter : Statistics
Grade : SSC Grade IX
License : Non Commercial Use
Question
1
1.
The marks obtained by
18
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
.
52
60
67
80
77
69
54
68
46
48
63
52
43
75
70
44
54
65
(i)
Marks
43 - 49
50 - 56
57 - 63
64 - 70
71 - 77
78 - 84
No. of Students
4
1
2
5
2
4
(ii)
Marks
43 - 49
50 - 56
57 - 63
64 - 70
71 - 77
78 - 84
No. of Students
4
2
4
5
2
1
(iii)
Marks
43 - 49
50 - 56
57 - 63
64 - 70
71 - 77
78 - 84
No. of Students
4
4
2
9
2
1
(iv)
Marks
43 - 49
50 - 56
57 - 63
64 - 70
71 - 77
78 - 84
No. of Students
4
4
2
5
2
1
(v)
Marks
43 - 49
50 - 56
57 - 63
64 - 70
71 - 77
78 - 84
No. of Students
4
4
4
5
2
1
Question
2
2.
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
8
.
73
75
45
46
64
57
48
65
79
54
80
70
69
50
80
69
73
58
52
48
(i)
Marks
45 - 53
53 - 61
61 - 69
69 - 77
77 - 85
No. of Students
6
3
2
6
3
(ii)
Marks
45 - 53
53 - 61
61 - 69
69 - 77
77 - 85
No. of Students
6
1
2
6
3
(iii)
Marks
45 - 53
53 - 61
61 - 69
69 - 77
77 - 85
No. of Students
6
2
3
6
3
(iv)
Marks
45 - 53
53 - 61
61 - 69
69 - 77
77 - 85
No. of Students
6
3
7
6
3
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
7
.
58
70
51
70
60
65
66
44
79
73
64
48
75
42
55
80
42
52
(i)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
4
3
2
7
4
2
(ii)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
4
3
4
3
4
2
(iii)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
4
2
3
3
4
2
(iv)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
4
2
2
3
4
3
(v)
Marks
42 - 49
49 - 56
56 - 63
63 - 70
70 - 77
77 - 84
No. of Students
4
3
2
3
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
.
23
12
13
10
20
10
14
17
21
18
15
12
18
10
17
13
23
20
(i)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
4
2
7
2
3
2
(ii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
4
2
2
2
3
2
(iii)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
4
4
2
2
3
2
(iv)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
2
4
2
2
3
2
(v)
Age (in years)
10 - 12
12 - 14
14 - 16
16 - 18
18 - 20
20 - 22
22 - 24
No. of Students
3
2
2
2
2
3
4
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
.
207
249
210
234
252
222
202
274
204
281
222
213
208
281
245
247
252
237
(i)
Wages (in rupees)
202 - 231
232 - 261
262 - 291
No. of Workers
8
7
3
(ii)
Wages (in rupees)
202 - 231
232 - 261
262 - 291
No. of Workers
3
7
8
(iii)
Wages (in rupees)
202 - 231
232 - 261
262 - 291
No. of Workers
7
8
3
(iv)
Wages (in rupees)
202 - 231
232 - 261
262 - 291
No. of Workers
8
10
3
Question
6
6.
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 exclusive form
taking class size
20
.
221
248
209
282
253
295
286
214
273
212
275
238
298
216
208
257
(i)
Wages (in rupees)
208 - 228
228 - 248
248 - 268
268 - 288
288 - 308
No. of Workers
6
3
1
4
2
(ii)
Wages (in rupees)
208 - 228
228 - 248
248 - 268
268 - 288
288 - 308
No. of Workers
6
2
3
4
1
(iii)
Wages (in rupees)
208 - 228
228 - 248
248 - 268
268 - 288
288 - 308
No. of Workers
6
3
3
4
2
(iv)
Wages (in rupees)
208 - 228
228 - 248
248 - 268
268 - 288
288 - 308
No. of Workers
6
1
5
4
2
(v)
Wages (in rupees)
208 - 228
228 - 248
248 - 268
268 - 288
288 - 308
No. of Workers
6
1
3
4
2
Question
7
7.
The weights (in gm) of
18
fruits are as follows.
Form the grouped frequency table
in inclusive form
by taking class size
50
.
296
215
250
292
236
237
392
332
385
325
328
307
229
299
343
308
334
312
(i)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
2
6
5
5
(ii)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
5
6
5
2
(iii)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
5
5
6
2
(iv)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
5
6
10
2
(v)
Weight (in gm)
215 - 264
265 - 314
315 - 364
365 - 414
No. of Fruits
5
4
5
2
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
.
239
360
272
287
206
229
366
350
261
320
365
205
327
200
221
233
356
232
208
392
(i)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
9
3
5
6
(ii)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
6
3
2
9
(iii)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
9
6
2
6
(iv)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
9
2
3
6
(v)
Weight (in gm)
200 - 250
250 - 300
300 - 350
350 - 400
No. of Fruits
9
3
2
6
Question
9
9.
Given the sample data, prepare the class interval table in
inclusive
form with
10
as min value and a class size of
10
.
14
36
10
44
50
42
42
43
20
16
16
48
40
16
43
(i)
Class-Interval
10 - 19
20 - 29
30 - 39
40 - 49
50 - 59
Frequency
5
4
1
7
1
(ii)
Class-Interval
10 - 19
20 - 29
30 - 39
40 - 49
50 - 59
Frequency
5
1
1
7
1
(iii)
Class-Interval
10 - 20
20 - 30
30 - 40
40 - 50
50 - 60
Frequency
5
1
1
7
1
Question
10
10.
Given the sample data, prepare the class interval table in
exclusive
form with
4
as min value and a class size of
5
.
27
48
10
30
38
7
37
4
14
11
31
36
32
43
12
38
(i)
Class-Interval
4 - 9
9 - 14
14 - 19
19 - 24
24 - 29
29 - 34
34 - 39
39 - 44
44 - 49
Frequency
2
3
0
1
1
3
4
1
1
(ii)
Class-Interval
4 - 8
9 - 13
14 - 18
19 - 23
24 - 28
29 - 33
34 - 38
39 - 43
44 - 48
Frequency
2
3
1
0
1
3
4
1
1
(iii)
Class-Interval
4 - 9
9 - 14
14 - 19
19 - 24
24 - 29
29 - 34
34 - 39
39 - 44
44 - 49
Frequency
2
1
1
0
1
3
4
1
3
(iv)
Class-Interval
4 - 9
9 - 14
14 - 19
19 - 24
24 - 29
29 - 34
34 - 39
39 - 44
44 - 49
Frequency
2
3
1
0
1
3
4
1
1
(v)
Class-Interval
4 - 9
9 - 14
14 - 19
19 - 24
24 - 29
29 - 34
34 - 39
39 - 44
44 - 49
Frequency
2
3
1
2
1
3
4
1
1
Assignment Key
1) (iv)
2) (i)
3) (v)
4) (ii)
5) (i)
6) (v)
7) (ii)
8) (v)
9) (ii)
10) (iv)
