xP(X = x)yP(Y = y)-10.10.20x15.310x2y1.320.4y2.2 (i) if E(X) = 10, what are x1, x2, and Var(X)?(ii) if y1 + y2 = 25 and E(Y) =7.5, what is Var(Y)?(iii) suppose X and Y are independent. What are Var(X - Y) and SD(X - Y)?

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Description: xP(X = x)yP(Y = y)-10.10.20x15.310x2y1.320.4y2.2 (i) if E(X) = 10, what are x1, x2, and Var(X)?(ii) if y1 + y2 = 25 and E(Y) =7.5, what is Var(Y)?(iii) suppose X and Y are independent. What are Var(X - Y) and SD(X - Y)?

Answered: x P(X = x) y P(Y = y) -10 .1 0 .2 0 x1…

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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x	P(X = x)	y	P(Y = y)
-10	.1	0	.2
0	x₁	5	.3
10	x₂	y₁	.3
20	.4	y₂	.2

(i) if E(X) = 10, what are x₁, x₂, and Var(X)?

(ii) if y₁ + y₂ = 25 and E(Y) =7.5, what is Var(Y)?

(iii) suppose X and Y are independent. What are Var(X - Y) and SD(X - Y)?

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