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Let X and Y be discrete random variables, their joint pmf is given as Px,y =...

Let X and Y be discrete random variables, their joint pmf is given as Px,y = ?(? + ? + 2)/(B + 2) for 0 ≤ X < 3, 0 ≤ Y < 3 Where B=2.

a) Find the value of ?

b) Find the marginal pmf of ? and ?

c) Find conditional pmf of ? given ? = 2

Math   Statistics-And-Probability   
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