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If the joint probability distribution of X and Y is given by: f(x, y) = k (x2 + y2), for x = -1, 0, 1,
If the joint probability distribution of X and Y is given by: f(x, y) = k (x2 + y2), for x = -1, 0, 1, 3; y = -1, 2, 3.
a).- Find the constant k.
b).- Using the table of the joint distribution and the marginal distributions, determine if the variable X and the variable Y are independent.
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