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Grinstead-Snell-Probability
· Problem 6.3.10
Sums of Random Variables
Mathematics · expected-value-variance-continuous
Problem
Let
X
X
X
and
Y
Y
Y
be independent random variables with uniform density functions on
[
0
,
1
]
[0, 1]
[
0
,
1
]
. Find (a)
E
(
∣
X
−
Y
∣
)
E(|X - Y|)
E
(
∣
X
−
Y
∣
)
. (b)
E
(
max
(
X
,
Y
)
)
E(\max(X, Y))
E
(
max
(
X
,
Y
))
. (c)
E
(
min
(
X
,
Y
)
)
E(\min(X, Y))
E
(
min
(
X
,
Y
))
. (d)
E
(
X
2
+
Y
2
)
E(X^2 + Y^2)
E
(
X
2
+
Y
2
)
. (e)
E
(
(
X
+
Y
)
2
)
E((X + Y)^2)
E
((
X
+
Y
)
2
)
.
Related theory
State Value And Action Value Functions
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