21. (13; Assume that a two-dimensional random variable (X,Y) has the following joint probability distribution as X -2 0 4 -3 0.2 0.1 0.2 5 0.1 0.1 a (1) Find the value of a, (2) Find the marginal probability distributions of random variables X and Y, respectively, (3) Find the probability distribution of M = Min(X, Y), Y

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A: Solution-: We have following table:   Y=1 Y=2 Y=3 Total X=1 - 0.21 - 0.7 X=2 - 0.09 - 0.3…

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A: As per policy I have calculated first 3 subparts plz REPOST for remaining parts with note I need…