Q23. Consider random variables Y, and Y. related to arbitrary random variables X and Y by the coo nate rotation. Y, = X cos 0 + Y sin 0, Y, =-X sin 0 + Y cos e (i) Find the covariance of Y,, Y, and Cy,Y, 13

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Q: (ii) For what value of 0, the random variables Y, and Y, are uncorrelated.

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Q: Find the covariance of Y,, Y, and Cy.y.

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Q: ΣX2 = 65        ΣY2 = 54100                       X̅ = 2.3        Y̅ = 73…

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Q: QUESTION 11 The jth autocorrelation coefficient is defined as: OA. OB. cov (Y,,Y₁-j-1) OC. cov…

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Q: What is the relationship of alpha when OA moves to OB

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Q: 1.4 Let X1, X2, X3, X4 U(0,0) and let Y 1. We reject Ho if Y, 2 c. Find the constant c that a =…

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Q: If n = 15, X= 60, Y = 45, XY = 180 then the covariance Cov(X, Y) will be %3D Select one: O -1 O 11.2…

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Q: 4. The Cov(xr, y,) between x and y for the following data : Σ-15 Σy= 36, Σxy 110, X; 7 = 5 is :

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Q: If n=15, EXY=180, EX=60, EY=45 then the covariance Cov(X, Y) will be Select one: O +1 O -1 O 11.2

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