If E(X) = 40, E(Y) = 25, Var(X) = 3, Var(Y) = 2, and X is independent
Question:
If E(X) = 40, E(Y) = 25, Var(X) = 3, Var(Y) = 2, and X is independent of
Y, find
a) E(5).
b) E(2X).
c) E(3X + 5Y).
d) E(7X − 3Y).
e) Var(12).
f) Var(7Y).
g) Var(3X + 5Y).
h) Var(3X − 5Y).
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Related Book For 
Principles Of Managerial Statistics And Data Science
ISBN: 9781119486411
1st Edition
Authors: Roberto Rivera
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