EduSahara™ Assignment
Name : Class Interval Table Concepts
Chapter : Data Handling
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Given class interval
20
-
24
in exclusive form, its
lower limit is
(i)
22
(ii)
20
(iii)
21
(iv)
19
(v)
18
Question
2
2.
Given class interval
14
-
21
in exclusive form, its
upper limit is
(i)
22
(ii)
24
(iii)
21
(iv)
20
(v)
19
Question
3
3.
Given class interval
40
-
48
in exclusive form, its
class size is
(i)
7
(ii)
11
(iii)
9
(iv)
8
(v)
5
Question
4
4.
Given class interval
40
-
45
in exclusive form, its
class mark is
(i)
85
2
(ii)
43
(iii)
169
4
(iv)
83
2
(v)
87
2
Question
5
5.
Given class interval
27
-
33
in exclusive form, its
mid value is
(i)
27
(ii)
32
(iii)
29
(iv)
30
(v)
31
Question
6
6.
If the upper and lower limit of class interval are 46 and 36 respectively, then the class interval is
(i)
35.5
-
46.5
(ii)
36
-
46
(iii)
36.5
-
45.5
(iv)
35.5
-
46
(v)
36
-
46.5
Question
7
7.
If the lower and upper limit of class interval are 10 and 17 respectively, then the class interval is
(i)
10
-
17.5
(ii)
10.5
-
16.5
(iii)
9.5
-
17
(iv)
9.5
-
17.5
(v)
10
-
17
Question
8
8.
The class boundaries of 21 - 28 which is in exclusive form are
(i)
21.5
-
27.5
(ii)
20.5
-
28
(iii)
20.5
-
28.5
(iv)
21
-
28
(v)
21
-
28.5
Question
9
9.
The class size used in the below table is
Class-Interval
49 - 54
54 - 59
59 - 64
64 - 69
69 - 74
74 - 79
79 - 84
84 - 89
Frequency
29
11
19
18
26
5
5
6
(i)
4
(ii)
6
(iii)
2
(iv)
5
(v)
8
Question
10
10.
In exclusive form representation, the observation
33
falls in which class?
(i)
33
-
43
(ii)
28
-
33
(iii)
23
-
33
(iv)
43
-
53
(v)
38
-
48
Question
11
11.
The class mark of the class with frequency x is
Class-Interval
Frequency
9 - 14
7
14 - 19
x
19 - 24
10
24 - 29
14
29 - 34
9
(i)
65
4
(ii)
35
2
(iii)
31
2
(iv)
17
(v)
33
2
Question
12
12.
The class boundaries of the class with frequency x is
Class-Interval
Frequency
37 - 45
6
45 - 53
2
53 - 61
2
61 - 69
11
69 - 77
x
(i)
68.5
-
77
(ii)
69
-
77
(iii)
69
-
77.5
(iv)
68.5
-
77.5
(v)
69.5
-
76.5
Question
13
13.
The true lower limit and true upper limit of the class with frequency x is
Class-Interval
Frequency
29 - 37
1
37 - 45
x
45 - 53
2
53 - 61
24
61 - 69
8
(i)
36.5
-
45
(ii)
37.5
-
44.5
(iii)
36.5
-
45.5
(iv)
37
-
45.5
(v)
37
-
45
Question
14
14.
The upper limit of the class with frequency x is
Class-Interval
Frequency
36 - 45
15
45 - 54
6
54 - 63
x
63 - 72
21
72 - 81
10
(i)
66
(ii)
60
(iii)
63
(iv)
64
(v)
62
Question
15
15.
If the sample data with range 70 has to be divided into 6 class intervals, then the length of the class is
(i)
13
(ii)
10
(iii)
14
(iv)
12
(v)
11
Question
16
16.
If the length of the class is 10, then the number of class intervals needed to represent data with range 40 is
(i)
5
(ii)
6
(iii)
4
(iv)
1
(v)
3
Question
17
17.
The number of classes of class size
5
required to represent
the given random sample in exclusive form
1
2
2
5
5
7
8
8
10
12
13
15
17
18
19
22
27
27
29
30
30
33
35
36
37
38
41
42
43
43
45
46
(i)
9
(ii)
10
(iii)
13
(iv)
11
(v)
7
Question
18
18.
If some random sample data is arranged in a frequency distribution table in
exclusive form
with
1
-
6
as the first class,
then the observation
23
falls in which class?
(i)
21
-
26
(ii)
21.5
-
25.5
(iii)
20
-
25
(iv)
22
-
27
(v)
20.5
-
26.5
Question
19
19.
Given class interval table, find the sum of frequencies.
Class-Interval
25 - 34
34 - 43
43 - 52
52 - 61
Frequency
26
3
5
1
(i)
34
(ii)
38
(iii)
36
(iv)
33
(v)
35
Question
20
20.
The class marks of a frequency distribution are
19.5 , 26.5 , 33.5 , 40.5
.
Find the class size and class intervals
in exclusive form
(i)
7
;
16
-
23
,
23
-
30
,
30
-
37
,
37
-
44
(ii)
9
;
15
-
23
,
24
-
32
,
33
-
41
,
42
-
50
(iii)
7
;
17
-
24
,
24
-
31
,
31
-
38
,
38
-
45
(iv)
8
;
16
-
23
,
24
-
31
,
32
-
39
,
40
-
47
(v)
7
;
15
-
22
,
22
-
29
,
29
-
36
,
36
-
43
Assignment Key
1) (ii)
2) (iii)
3) (iv)
4) (i)
5) (iv)
6) (ii)
7) (v)
8) (iv)
9) (iv)
10) (i)
11) (v)
12) (ii)
13) (v)
14) (iii)
15) (iv)
16) (iii)
17) (ii)
18) (i)
19) (v)
20) (i)
