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Random Variables
medium
0:00.0
Let
X
∼
Chi
2
(
k
=
10
)
X \sim \text{Chi}^2(k=10)
X
∼
Chi
2
(
k
=
10
)
. What is
V
a
r
(
X
)
Var(X)
V
a
r
(
X
)
?
A
5
B
10
C
20
D
100
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