EduSahara™ Assignment
Name : Class Interval Table Concepts
Chapter : Data Handling
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Given class interval
25
-
29
in exclusive form, its
lower limit is
(i)
26
(ii)
25
(iii)
27
(iv)
23
(v)
24
Question
2
2.
Given class interval
29
-
35
in exclusive form, its
upper limit is
(i)
32
(ii)
36
(iii)
37
(iv)
35
(v)
34
Question
3
3.
Given class interval
37
-
46
in exclusive form, its
class size is
(i)
12
(ii)
7
(iii)
10
(iv)
9
(v)
8
Question
4
4.
Given class interval
47
-
51
in exclusive form, its
class mark is
(i)
47
(ii)
48
(iii)
52
(iv)
49
(v)
50
Question
5
5.
Given class interval
11
-
14
in exclusive form, its
mid value is
(i)
27
2
(ii)
49
4
(iii)
13
(iv)
23
2
(v)
25
2
Question
6
6.
If the upper and lower limit of class interval are 24 and 20 respectively, then the class interval is
(i)
19.5
-
24.5
(ii)
20
-
24
(iii)
19.5
-
24
(iv)
20.5
-
23.5
(v)
20
-
24.5
Question
7
7.
If the lower and upper limit of class interval are 10 and 18 respectively, then the class interval is
(i)
10.5
-
17.5
(ii)
9.5
-
18
(iii)
10
-
18.5
(iv)
9.5
-
18.5
(v)
10
-
18
Question
8
8.
The class boundaries of 48 - 53 which is in exclusive form are
(i)
48.5
-
52.5
(ii)
48
-
53
(iii)
47.5
-
53.5
(iv)
48
-
53.5
(v)
47.5
-
53
Question
9
9.
The class size used in the below table is
Class-Interval
19 - 29
29 - 39
39 - 49
49 - 59
59 - 69
69 - 79
79 - 89
Frequency
12
16
8
11
1
21
14
(i)
8
(ii)
13
(iii)
11
(iv)
9
(v)
10
Question
10
10.
In exclusive form representation, the observation
22
falls in which class?
(i)
27
-
37
(ii)
17
-
22
(iii)
12
-
22
(iv)
22
-
32
(v)
32
-
42
Question
11
11.
The class mark of the class with frequency x is
Class-Interval
Frequency
3 - 13
2
13 - 23
3
23 - 33
2
33 - 43
2
43 - 53
x
(i)
49
(ii)
51
(iii)
45
(iv)
48
(v)
47
Question
12
12.
The class boundaries of the class with frequency x is
Class-Interval
Frequency
17 - 22
30
22 - 27
26
27 - 32
30
32 - 37
x
37 - 42
29
(i)
32
-
37.5
(ii)
31.5
-
37.5
(iii)
32
-
37
(iv)
32.5
-
36.5
(v)
31.5
-
37
Question
13
13.
The true lower limit and true upper limit of the class with frequency x is
Class-Interval
Frequency
20 - 27
12
27 - 34
x
34 - 41
27
41 - 48
29
48 - 55
18
(i)
27
-
34
(ii)
27
-
34.5
(iii)
26.5
-
34
(iv)
26.5
-
34.5
(v)
27.5
-
33.5
Question
14
14.
The upper limit of the class with frequency x is
Class-Interval
Frequency
13 - 18
14
18 - 23
24
23 - 28
x
28 - 33
26
33 - 38
13
(i)
26
(ii)
29
(iii)
27
(iv)
28
(v)
30
Question
15
15.
If the sample data with range 60 has to be divided into 7 class intervals, then the length of the class is
(i)
8
(ii)
10
(iii)
6
(iv)
11
(v)
9
Question
16
16.
If the length of the class is 7, then the number of class intervals needed to represent data with range 70 is
(i)
13
(ii)
8
(iii)
9
(iv)
10
(v)
11
Question
17
17.
The number of classes of class size
10
required to represent
the given random sample in exclusive form
1
1
4
9
13
16
21
21
21
23
25
29
29
34
37
39
43
48
48
48
49
(i)
7
(ii)
5
(iii)
4
(iv)
3
(v)
6
Question
18
18.
If some random sample data is arranged in a frequency distribution table in
exclusive form
with
2
-
10
as the first class,
then the observation
21
falls in which class?
(i)
18.5
-
25.5
(ii)
19
-
27
(iii)
17
-
25
(iv)
18
-
26
(v)
17.5
-
26.5
Question
19
19.
Given class interval table, find the sum of frequencies.
Class-Interval
49 - 54
54 - 59
59 - 64
64 - 69
69 - 74
74 - 79
79 - 84
Frequency
23
29
15
18
10
2
17
(i)
115
(ii)
112
(iii)
114
(iv)
113
(v)
117
Question
20
20.
The class marks of a frequency distribution are
25.5 , 32.5 , 39.5 , 46.5
.
Find the class size and class intervals
in exclusive form
(i)
7
;
23
-
30
,
30
-
37
,
37
-
44
,
44
-
51
(ii)
7
;
21
-
28
,
28
-
35
,
35
-
42
,
42
-
49
(iii)
9
;
21
-
29
,
30
-
38
,
39
-
47
,
48
-
56
(iv)
8
;
22
-
29
,
30
-
37
,
38
-
45
,
46
-
53
(v)
7
;
22
-
29
,
29
-
36
,
36
-
43
,
43
-
50
Assignment Key
1) (ii)
2) (iv)
3) (iv)
4) (iv)
5) (v)
6) (ii)
7) (v)
8) (ii)
9) (v)
10) (iv)
11) (iv)
12) (iii)
13) (i)
14) (iv)
15) (v)
16) (iv)
17) (ii)
18) (iv)
19) (iii)
20) (v)
