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7. Suppose X and Y have the following joint probability mass function. p(1, 1) = 0.10, p(1, 2) = 0.12, p(1,3) = 0.16 p(2, 1) = 0.08, p(2, 2) = 0.12, p(2,3) = 0.10 p(3, 1) = 0.06, p(3, 2) = 0.06, p(3, 3) = 0.20 (a) Find E[X] and E[Y]. (b) Find Var(X) and Var(Y). (c ) Find Cου (Χ, Υ).

7. Suppose X and Y have the following joint probability mass function. p(1, 1) = 0.10, p(1, 2) = 0.12, p(1,3) = 0.16 p(2, 1) = 0.08, p(2, 2) = 0.12, p(2,3) = 0.10 p(3, 1) = 0.06, p(3, 2) = 0.06, p(3, 3) = 0.20 (a) Find E[X] and E[Y]. (b) Find Var(X) and Var(Y). (c ) Find Cου (Χ, Υ).

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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7. Suppose X and Y have the following joint probability mass function. p(1, 1) = 0.10, p(1, 2) = 0.12, p(1,3) = 0.16 p(2, 1) = 0.08, p(2, 2) = 0.12, p(2,3) = 0.10 p(3, 1) = 0.06, p(3, 2) = 0.06, p(3,3) = 0.20 (a) Find E[X] and E[Y]. (b) Find Var(X) and Var(Y). (c) Find Cov(X,Y). (d) Find Corr(X,Y).
Transcribed Image Text:7. Suppose X and Y have the following joint probability mass function. p(1, 1) = 0.10, p(1, 2) = 0.12, p(1,3) = 0.16 p(2, 1) = 0.08, p(2, 2) = 0.12, p(2,3) = 0.10 p(3, 1) = 0.06, p(3, 2) = 0.06, p(3,3) = 0.20 (a) Find E[X] and E[Y]. (b) Find Var(X) and Var(Y). (c) Find Cov(X,Y). (d) Find Corr(X,Y).
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