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Random Variables
medium
0:00.0
Let
X
∼
Chi
2
(
k
=
5
)
X \sim \text{Chi}^2(k=5)
X
∼
Chi
2
(
k
=
5
)
. What is
E
[
X
]
E[X]
E
[
X
]
?
A
3
B
4
C
5
D
6
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