qui4 - P ( X + Y = 2). 3. Find P ( X = Y ). 4. Find the...

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Math 310-1 (Fall 2010) Name: Quiz #4 Time: 20 minutes Suppose X and Y are discrete random variables, each taking values in { 0 , 1 , 2 ,... } , with joint density function f ( X,Y ) ( x,y ) = C 2 2 x + y . 1. Find C . 2. Find
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Unformatted text preview: P ( X + Y = 2). 3. Find P ( X = Y ). 4. Find the distribution of X and the distribution of Y . 5. Are X and Y independent? Why or why not?...
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