Suppose X and Y are independent random variables such that E(X) = 0,-1, Var(X)= 1, and Var(Y) = 4.Find the following:a. E(7X + 2Y – 3)b. Е(X?)с. Var(2X — 5Y + 7)

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Answered: Suppose X and Y are independent random…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 21E

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Suppose X and Y are independent random variables such that E(X)= 0, E(Y) = -1, Var(X) = 1, and Var(Y) = 4. Find the following: a. E(7X +2Y – 3) b. Е(X?) c. Var(2X – 5Y +7)