The marginal distribution of ( a discrete RV) is defined by:
How can you know this without knowing the marginals?2. Are X and Y independent?
I know they are indepented because f(x,y)=g(x)h(y)
That is true, right?
I just can't come up with the correct way to solve for the marginals. Will each marginal end up just being 1/6?
where is the joint probability of and , the marginal for and the marginal for is a necessary and sufficient condition for independence, but you need to show that it is true (or false).