EduSahara™ Assignment
Name : Class Interval Table Concepts
Chapter : Data Handling
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Given class interval
42
-
52
in exclusive form, its
lower limit is
(i)
43
(ii)
41
(iii)
39
(iv)
45
(v)
42
Question
2
2.
Given class interval
22
-
29
in exclusive form, its
upper limit is
(i)
28
(ii)
26
(iii)
32
(iv)
30
(v)
29
Question
3
3.
Given class interval
36
-
40
in exclusive form, its
class size is
(i)
5
(ii)
2
(iii)
4
(iv)
3
(v)
6
Question
4
4.
Given class interval
27
-
31
in exclusive form, its
class mark is
(i)
28
(ii)
30
(iii)
27
(iv)
29
(v)
31
Question
5
5.
Given class interval
45
-
54
in exclusive form, its
mid value is
(i)
50
(ii)
101
2
(iii)
197
4
(iv)
97
2
(v)
99
2
Question
6
6.
If the upper and lower limit of class interval are 32 and 26 respectively, then the class interval is
(i)
26.5
-
31.5
(ii)
26
-
32.5
(iii)
25.5
-
32.5
(iv)
25.5
-
32
(v)
26
-
32
Question
7
7.
If the lower and upper limit of class interval are 22 and 25 respectively, then the class interval is
(i)
22
-
25.5
(ii)
22
-
25
(iii)
21.5
-
25.5
(iv)
22.5
-
24.5
(v)
21.5
-
25
Question
8
8.
The class boundaries of 24 - 27 which is in exclusive form are
(i)
23.5
-
27.5
(ii)
24
-
27
(iii)
24
-
27.5
(iv)
23.5
-
27
(v)
24.5
-
26.5
Question
9
9.
The class size used in the below table is
Class-Interval
16 - 22
22 - 28
28 - 34
34 - 40
40 - 46
Frequency
1
27
18
18
11
(i)
9
(ii)
4
(iii)
5
(iv)
7
(v)
6
Question
10
10.
In exclusive form representation, the observation
21
falls in which class?
(i)
31
-
41
(ii)
26
-
36
(iii)
21
-
31
(iv)
16
-
21
(v)
11
-
21
Question
11
11.
The class mark of the class with frequency x is
Class-Interval
Frequency
6 - 16
13
16 - 26
30
26 - 36
15
36 - 46
24
46 - 56
x
(i)
54
(ii)
51
(iii)
50
(iv)
52
(v)
48
Question
12
12.
The class boundaries of the class with frequency x is
Class-Interval
Frequency
11 - 18
x
18 - 25
18
25 - 32
11
32 - 39
21
39 - 46
22
(i)
11
-
18
(ii)
11.5
-
17.5
(iii)
10.5
-
18.5
(iv)
11
-
18.5
(v)
10.5
-
18
Question
13
13.
The true lower limit and true upper limit of the class with frequency x is
Class-Interval
Frequency
34 - 39
x
39 - 44
11
44 - 49
2
49 - 54
18
54 - 59
22
(i)
33.5
-
39
(ii)
33.5
-
39.5
(iii)
34
-
39
(iv)
34.5
-
38.5
(v)
34
-
39.5
Question
14
14.
The upper limit of the class with frequency x is
Class-Interval
Frequency
30 - 37
20
37 - 44
16
44 - 51
29
51 - 58
14
58 - 65
x
(i)
67
(ii)
66
(iii)
65
(iv)
64
(v)
62
Question
15
15.
If the sample data with range 30 has to be divided into 7 class intervals, then the length of the class is
(i)
5
(ii)
6
(iii)
4
(iv)
7
(v)
2
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)
11
(iii)
10
(iv)
7
(v)
9
Question
17
17.
The number of classes of class size
4
required to represent
the given random sample in exclusive form
6
7
7
10
11
11
14
15
18
20
21
25
28
32
32
33
33
36
36
36
38
39
40
42
42
43
44
44
46
48
50
(i)
15
(ii)
11
(iii)
13
(iv)
12
(v)
9
Question
18
18.
If some random sample data is arranged in a frequency distribution table in
exclusive form
with
1
-
7
as the first class,
then the observation
34
falls in which class?
(i)
32
-
38
(ii)
31
-
37
(iii)
30
-
36
(iv)
30.5
-
37.5
(v)
31.5
-
36.5
Question
19
19.
Given class interval table, find the sum of frequencies.
Class-Interval
18 - 24
24 - 30
30 - 36
36 - 42
42 - 48
Frequency
20
19
25
19
20
(i)
102
(ii)
101
(iii)
105
(iv)
103
(v)
104
Question
20
20.
The class marks of a frequency distribution are
21 , 29 , 37 , 45
.
Find the class size and class intervals
in exclusive form
(i)
8
;
18
-
26
,
26
-
34
,
34
-
42
,
42
-
50
(ii)
8
;
17
-
25
,
25
-
33
,
33
-
41
,
41
-
49
(iii)
9
;
17
-
25
,
26
-
34
,
35
-
43
,
44
-
52
(iv)
10
;
16
-
25
,
26
-
35
,
36
-
45
,
46
-
55
(v)
8
;
16
-
24
,
24
-
32
,
32
-
40
,
40
-
48
Assignment Key
1) (v)
2) (v)
3) (iii)
4) (iv)
5) (v)
6) (v)
7) (ii)
8) (ii)
9) (v)
10) (iii)
11) (ii)
12) (i)
13) (iii)
14) (iii)
15) (i)
16) (iii)
17) (iv)
18) (ii)
19) (iv)
20) (ii)
