If the joint density function of X and Y Is given Sk(x+2y), 0

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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4. If the joint density function of X and Y is glven
[k(x +2y), 0 <x< 1;1 < y< 2
0, elsewhere
f(x, y) =
a.
Evaluate the value k.
b. Estimate P(X+Y<2).
Find the marginal distribution of X and the marginal distribution of Y.
d. Calculate P (1<y<3/2/x%31/2).
Calculate P (0<x<1/2/y%3D3/2).
Find the expected value of X and the expected value of Y.
g. Determine whether the two random variables are dependent or independent.
C.
e.
f.
h. Find the expected value of g(X, Y) = X/Y3 +X2Y.
i.
Calculate the variance of X and the variance of Y.
Calculate the covariance of the random variables X and Y.
Transcribed Image Text:4. If the joint density function of X and Y is glven [k(x +2y), 0 <x< 1;1 < y< 2 0, elsewhere f(x, y) = a. Evaluate the value k. b. Estimate P(X+Y<2). Find the marginal distribution of X and the marginal distribution of Y. d. Calculate P (1<y<3/2/x%31/2). Calculate P (0<x<1/2/y%3D3/2). Find the expected value of X and the expected value of Y. g. Determine whether the two random variables are dependent or independent. C. e. f. h. Find the expected value of g(X, Y) = X/Y3 +X2Y. i. Calculate the variance of X and the variance of Y. Calculate the covariance of the random variables X and Y.
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