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Random Variables
hard
0:00.0
Let
X
∼
Exp
(
1
)
X \sim \text{Exp}(1)
X
∼
Exp
(
1
)
. Find
V
a
r
(
2
X
+
3
)
Var(2X+3)
V
a
r
(
2
X
+
3
)
.
A
1
B
2
C
4
D
8
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