EduSahara™ Assignment
Name : Class Interval Table Concepts
Chapter : Data Handling
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Given class interval
14
-
23
in exclusive form, its
lower limit is
(i)
13
(ii)
16
(iii)
15
(iv)
11
(v)
14
Question
2
2.
Given class interval
43
-
53
in exclusive form, its
upper limit is
(i)
54
(ii)
51
(iii)
52
(iv)
53
(v)
56
Question
3
3.
Given class interval
38
-
42
in exclusive form, its
class size is
(i)
4
(ii)
2
(iii)
5
(iv)
3
(v)
6
Question
4
4.
Given class interval
15
-
17
in exclusive form, its
class mark is
(i)
16
(ii)
15
(iii)
13
(iv)
17
(v)
18
Question
5
5.
Given class interval
23
-
28
in exclusive form, its
mid value is
(i)
101
4
(ii)
49
2
(iii)
51
2
(iv)
53
2
(v)
26
Question
6
6.
If the upper and lower limit of class interval are 31 and 26 respectively, then the class interval is
(i)
26
-
31
(ii)
26
-
31.5
(iii)
26.5
-
30.5
(iv)
25.5
-
31
(v)
25.5
-
31.5
Question
7
7.
If the lower and upper limit of class interval are 42 and 52 respectively, then the class interval is
(i)
42
-
52
(ii)
42.5
-
51.5
(iii)
41.5
-
52.5
(iv)
42
-
52.5
(v)
41.5
-
52
Question
8
8.
The class boundaries of 38 - 43 which is in exclusive form are
(i)
38
-
43.5
(ii)
37.5
-
43.5
(iii)
38
-
43
(iv)
38.5
-
42.5
(v)
37.5
-
43
Question
9
9.
The class size used in the below table is
Class-Interval
36 - 46
46 - 56
56 - 66
66 - 76
Frequency
21
12
16
8
(i)
12
(ii)
11
(iii)
9
(iv)
8
(v)
10
Question
10
10.
In exclusive form representation, the observation
22
falls in which class?
(i)
17
-
22
(ii)
12
-
22
(iii)
22
-
32
(iv)
32
-
42
(v)
27
-
37
Question
11
11.
The class mark of the class with frequency x is
Class-Interval
Frequency
1 - 11
15
11 - 21
7
21 - 31
26
31 - 41
12
41 - 51
x
(i)
44
(ii)
47
(iii)
46
(iv)
48
(v)
45
Question
12
12.
The class boundaries of the class with frequency x is
Class-Interval
Frequency
14 - 22
17
22 - 30
27
30 - 38
26
38 - 46
4
46 - 54
x
(i)
46
-
54
(ii)
46
-
54.5
(iii)
46.5
-
53.5
(iv)
45.5
-
54.5
(v)
45.5
-
54
Question
13
13.
The true lower limit and true upper limit of the class with frequency x is
Class-Interval
Frequency
33 - 38
14
38 - 43
23
43 - 48
7
48 - 53
24
53 - 58
x
(i)
52.5
-
58
(ii)
53
-
58
(iii)
53.5
-
57.5
(iv)
52.5
-
58.5
(v)
53
-
58.5
Question
14
14.
The upper limit of the class with frequency x is
Class-Interval
Frequency
48 - 57
26
57 - 66
x
66 - 75
6
75 - 84
10
84 - 93
17
(i)
69
(ii)
66
(iii)
65
(iv)
67
(v)
63
Question
15
15.
If the sample data with range 50 has to be divided into 5 class intervals, then the length of the class is
(i)
12
(ii)
9
(iii)
11
(iv)
10
(v)
8
Question
16
16.
If the length of the class is 4, then the number of class intervals needed to represent data with range 30 is
(i)
7
(ii)
10
(iii)
9
(iv)
11
(v)
8
Question
17
17.
The number of classes of class size
7
required to represent
the given random sample in exclusive form
3
6
9
11
20
22
23
24
28
29
29
31
33
33
35
35
35
38
38
38
38
39
41
43
43
44
48
48
49
(i)
5
(ii)
7
(iii)
6
(iv)
9
(v)
8
Question
18
18.
If some random sample data is arranged in a frequency distribution table in
exclusive form
with
1
-
8
as the first class,
then the observation
30
falls in which class?
(i)
28
-
35
(ii)
29.5
-
35.5
(iii)
29
-
36
(iv)
30
-
37
(v)
28.5
-
36.5
Question
19
19.
Given class interval table, find the sum of frequencies.
Class-Interval
12 - 22
22 - 32
32 - 42
42 - 52
52 - 62
62 - 72
Frequency
3
7
8
9
25
22
(i)
75
(ii)
74
(iii)
71
(iv)
76
(v)
73
Question
20
20.
The class marks of a frequency distribution are
24 , 34 , 44 , 54
.
Find the class size and class intervals
in exclusive form
(i)
11
;
19
-
29
,
30
-
40
,
41
-
51
,
52
-
62
(ii)
10
;
19
-
29
,
29
-
39
,
39
-
49
,
49
-
59
(iii)
10
;
18
-
28
,
28
-
38
,
38
-
48
,
48
-
58
(iv)
12
;
18
-
29
,
30
-
41
,
42
-
53
,
54
-
65
(v)
10
;
20
-
30
,
30
-
40
,
40
-
50
,
50
-
60
Assignment Key
1) (v)
2) (iv)
3) (i)
4) (i)
5) (iii)
6) (i)
7) (i)
8) (iii)
9) (v)
10) (iii)
11) (iii)
12) (i)
13) (ii)
14) (ii)
15) (iv)
16) (iii)
17) (ii)
18) (iii)
19) (ii)
20) (ii)
