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NDA Math Statistics
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© examsnet.com
Question : 12
Total: 100
Consider the following discrete frequency distribution:
x
1
2
3
4
5
6
7
8
f
3
15
45
57
50
36
25
9
What is the value of median of the distribution?
[NDA II 2019]
4
5
6
7
Validate
Solution:
x
f
c.f
1
3
3
2
15
18
3
45
63
4
57
120
5
50
170
6
36
206
7
25
231
8
9
240
N
=
Σ
f
=
240
∴
N
2
=
240
2
=
120
The cumulative frequency just greater than
N
2
i.e., 120 is 170
The corresponding value of the variable(x) is 5
So, Median = 5
© examsnet.com
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