Home Statistics homework help   Suppose we have a frequency function for two variables X and Y,     , for
Statistics homework help

  Suppose we have a frequency function for two variables X and Y,     , for

 
Suppose we have a frequency function for two variables X and Y, 
   , for x = 0, 1, 2, 3 and  y = 0, 1, 2. 
Determine the marginal distributions of X and Y.
Determine E(X) and E(Y).
Determine E(X + Y).
If Z = 2X + 10, determine E(Z).
Determine E(XY).
Determine cov(X,Y).
Are X and Y independent?  Justify your answer.

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