A 6-sided die is rolled twice. Let X be the sum of the two rolls, Y be the first minus the second, and Z be the 5 times the first, minus the second. (a) Compute Cov(X, Y): Cov(X,Y) = 0 (b) Compute Cov(X, Z): Cov(X, Z) =

A 6-sided die is rolled twice. Let X be the sum of the two rolls, Y be the first minus the second, and Z be the 5 times the first, minus the second. (a) Compute Cov(X, Y): Cov(X,Y) = 0 (b) Compute Cov(X, Z): Cov(X, Z) =

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter2: Equations And Inequalities

Section2.1: Equations

Problem 76E

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Question

A 6-sided die is rolled twice. Let X be the sum of the two rolls, Y be the first minus the second, and Z be the 5 times the first, minus the second.
(a) Compute Cov(X, Y):
Cov(X,Y) = 0
(b) Compute Cov(X, Z):
Cov(X, Z) =

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