Question: A pair of discrete random variables has a PGF given by (a) Find the means, E [M] and E [N]. (b) Find the correlation, E

A pair of discrete random variables has a PGF given by
HM, N=1,22) (4-21-z2)?

(a) Find the means, E [M] and E [N].
(b) Find the correlation, E [MN].
(c) Find the joint PMF, P M, N (m, n).

HM, N=1,22) (4-21-z2)?

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