A tetrahedron with 4 sides (1,2,3,4) is tossed two times. X=min of two observations, Y=max of two observations.

I am trying to find the correlation coefficient of X and Y.

I think I am suppose to make a table for sample space for tosses, a table for the values of X and Y for each outcome, and the table for the pmf.

but i am just having trouble trying to start on the first table...