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Random Variables
medium
0:00.0
If
C
o
v
(
X
,
Y
)
=
2
Cov(X, Y) = 2
C
o
v
(
X
,
Y
)
=
2
, what is
C
o
v
(
2
X
,
3
Y
)
Cov(2X, 3Y)
C
o
v
(
2
X
,
3
Y
)
?
A
2
B
6
C
12
D
36
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