Round all final answers to four decimal places if necessary. #8) Consider the following information about random variables X, Y, A, and B:µx= 4Ox = 6Hy= 8Oy = 10A = 0.4X + 0.6YB = 0.8X0.2Ya) Suppose that pxy = 0.2. What is µa?b) Suppose that pxy = 0.1. What is o?c) Suppose that pxy= 0.5. What is o4?

(a) To find E(A) = μA Given: A = 0.4X + 0.6Y E(A) = E(0.4X + 0.6 Y) E(A) = E(0.4X) + E(0.6Y) E(A) =…

#8) Consider the following information about random variables X, Y, A, and B: µx=4 Ox= 6 µy= 8 Oy= 10 A = 0.4X + 0.6Y B = 0.8X – 0.2Y a) Suppose that pxy = 0.2. What is µa? b) Suppose that pxy = 0.1. What is o? c) Suppose that pxy = 0.5. What is ơĄ?

#8) Consider the following information about random variables X, Y, A, and B: µx=4 Ox= 6 µy= 8 Oy= 10 A = 0.4X + 0.6Y B = 0.8X – 0.2Y a) Suppose that pxy = 0.2. What is µa? b) Suppose that pxy = 0.1. What is o? c) Suppose that pxy = 0.5. What is ơĄ?

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Question

Round all final answers to four decimal places if necessary.

#8) Consider the following information about random variables X, Y, A, and B:
µx= 4
Ox = 6
Hy= 8
Oy = 10
A = 0.4X + 0.6Y
B = 0.8X
0.2Y
a) Suppose that pxy = 0.2. What is µa?
b) Suppose that pxy = 0.1. What is o?
c) Suppose that pxy= 0.5. What is o4?

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