7. Suppose that X and Y are independent random vari- ables for which Var(X)= Var(Y)=3. Find the values of (a) Var(X Y) and (b) Var(2 X. 3Y + 1)
7. Suppose that X and Y are independent random vari- ables for which Var(X)= Var(Y)=3. Find the values of (a) Var(X Y) and (b) Var(2 X. 3Y + 1)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:7. Suppose that X and Y are independent random vari-
ables for which Var(X)= Var(Y) =3. Find the values of
(a) Var(X – Y) and (b) Var(2X – 3Y + 1).
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