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AP and TS EAMCET Engineering Model Paper 14
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© examsnet.com
Question : 58
Total: 159
A random variable has the following distribution
X
=
x
i
1
2
3
4
P
(
X
=
x
i
)
k
2
k
3
k
4
k
then the values of k and P ( X < 3) are respectively
1
10
,
3
5
1
10
,
3
10
3
10
,
1
10
1
10
,
5
12
Validate
Solution:
Since
∑
p
(
X
=
x
i
)
=
1
⇒
10
k
=
1
;
k
=
1
10
P
(
x
<
3
)
=
k
+
2
k
=
3
k
=
3
10
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