4. Random variables X and Y are uniformly distributed on the set {1,2, 3, 4} and independent. Let U = min{X, Y}, and (-1, if X >Y, V = 0, if X = Y, if X < Y. Find the joint probability mass function of U and V and their marginal probability mass functions. Are U and V independent?

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4. Random variables X and Y are uniformly distributed on the set {1, 2, 3, 4} and independent. Let
U = min{X, Y}, and
-1, if X > Y,
V = {0,
if X = Y,
1,
if X < Y.
Find the joint probability mass function of U and V and their marginal probability mass functions.
Are U and V independent?
Transcribed Image Text:4. Random variables X and Y are uniformly distributed on the set {1, 2, 3, 4} and independent. Let U = min{X, Y}, and -1, if X > Y, V = {0, if X = Y, 1, if X < Y. Find the joint probability mass function of U and V and their marginal probability mass functions. Are U and V independent?
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