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Distributions
medium
0:00.0
For
X
s
i
m
P
o
i
s
s
o
n
(
3
)
X \\sim Poisson(3)
X
s
im
P
o
i
sso
n
(
3
)
, what is
V
a
r
(
X
)
Var(X)
V
a
r
(
X
)
?
A
4
4
4
B
2
2
2
C
9
9
9
D
3
3
3
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