EduSahara™ Assignment
Name : Class Interval Table Concepts
Chapter : Data Handling
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Given class interval
22
-
32
in exclusive form, its
lower limit is
(i)
22
(ii)
23
(iii)
21
(iv)
25
(v)
19
Question
2
2.
Given class interval
16
-
25
in exclusive form, its
upper limit is
(i)
24
(ii)
22
(iii)
25
(iv)
27
(v)
26
Question
3
3.
Given class interval
27
-
34
in exclusive form, its
class size is
(i)
10
(ii)
4
(iii)
8
(iv)
7
(v)
6
Question
4
4.
Given class interval
12
-
17
in exclusive form, its
class mark is
(i)
31
2
(ii)
29
2
(iii)
57
4
(iv)
27
2
(v)
15
Question
5
5.
Given class interval
47
-
51
in exclusive form, its
mid value is
(i)
51
(ii)
50
(iii)
49
(iv)
46
(v)
48
Question
6
6.
If the upper and lower limit of class interval are 41 and 39 respectively, then the class interval is
(i)
39.5
-
40.5
(ii)
38.5
-
41.5
(iii)
38.5
-
41
(iv)
39
-
41.5
(v)
39
-
41
Question
7
7.
If the lower and upper limit of class interval are 38 and 48 respectively, then the class interval is
(i)
37.5
-
48.5
(ii)
38.5
-
47.5
(iii)
38
-
48
(iv)
37.5
-
48
(v)
38
-
48.5
Question
8
8.
The class boundaries of 15 - 22 which is in exclusive form are
(i)
14.5
-
22.5
(ii)
15
-
22
(iii)
15
-
22.5
(iv)
14.5
-
22
(v)
15.5
-
21.5
Question
9
9.
The class size used in the below table is
Class-Interval
15 - 22
22 - 29
29 - 36
36 - 43
43 - 50
50 - 57
57 - 64
Frequency
12
16
18
30
19
24
25
(i)
6
(ii)
4
(iii)
9
(iv)
8
(v)
7
Question
10
10.
In exclusive form representation, the observation
43
falls in which class?
(i)
48
-
58
(ii)
43
-
53
(iii)
38
-
43
(iv)
33
-
43
(v)
53
-
63
Question
11
11.
The class mark of the class with frequency x is
Class-Interval
Frequency
5 - 15
5
15 - 25
24
25 - 35
28
35 - 45
7
45 - 55
x
(i)
50
(ii)
51
(iii)
47
(iv)
52
(v)
49
Question
12
12.
The class boundaries of the class with frequency x is
Class-Interval
Frequency
15 - 21
x
21 - 27
12
27 - 33
12
33 - 39
2
39 - 45
29
(i)
15
-
21.5
(ii)
15.5
-
20.5
(iii)
14.5
-
21.5
(iv)
15
-
21
(v)
14.5
-
21
Question
13
13.
The true lower limit and true upper limit of the class with frequency x is
Class-Interval
Frequency
29 - 34
x
34 - 39
10
39 - 44
21
44 - 49
29
49 - 54
6
(i)
29.5
-
33.5
(ii)
28.5
-
34.5
(iii)
28.5
-
34
(iv)
29
-
34.5
(v)
29
-
34
Question
14
14.
The upper limit of the class with frequency x is
Class-Interval
Frequency
23 - 30
20
30 - 37
2
37 - 44
x
44 - 51
8
51 - 58
1
(i)
46
(ii)
43
(iii)
44
(iv)
41
(v)
45
Question
15
15.
If the sample data with range 40 has to be divided into 5 class intervals, then the length of the class is
(i)
7
(ii)
8
(iii)
10
(iv)
9
(v)
5
Question
16
16.
If the length of the class is 7, then the number of class intervals needed to represent data with range 60 is
(i)
10
(ii)
12
(iii)
7
(iv)
9
(v)
8
Question
17
17.
The number of classes of class size
7
required to represent
the given random sample in exclusive form
1
7
7
8
8
8
10
10
14
15
18
20
20
21
22
22
23
24
26
29
29
31
33
36
37
38
38
40
42
45
45
46
48
50
(i)
10
(ii)
8
(iii)
7
(iv)
9
(v)
6
Question
18
18.
If some random sample data is arranged in a frequency distribution table in
exclusive form
with
1
-
10
as the first class,
then the observation
27
falls in which class?
(i)
18
-
27
(ii)
19
-
28
(iii)
19.5
-
27.5
(iv)
20
-
29
(v)
18.5
-
28.5
Question
19
19.
Given class interval table, find the sum of frequencies.
Class-Interval
40 - 45
45 - 50
50 - 55
55 - 60
60 - 65
65 - 70
70 - 75
75 - 80
Frequency
14
9
5
2
17
25
7
4
(i)
82
(ii)
85
(iii)
84
(iv)
80
(v)
83
Question
20
20.
The class marks of a frequency distribution are
23 , 29 , 35 , 41
.
Find the class size and class intervals
in exclusive form
(i)
8
;
19
-
26
,
27
-
34
,
35
-
42
,
43
-
50
(ii)
6
;
20
-
26
,
26
-
32
,
32
-
38
,
38
-
44
(iii)
6
;
21
-
27
,
27
-
33
,
33
-
39
,
39
-
45
(iv)
7
;
20
-
26
,
27
-
33
,
34
-
40
,
41
-
47
(v)
6
;
19
-
25
,
25
-
31
,
31
-
37
,
37
-
43
Assignment Key
1) (i)
2) (iii)
3) (iv)
4) (ii)
5) (iii)
6) (v)
7) (iii)
8) (ii)
9) (v)
10) (ii)
11) (i)
12) (iv)
13) (v)
14) (iii)
15) (ii)
16) (iv)
17) (ii)
18) (ii)
19) (v)
20) (ii)
