Consider the experiment of tossing two fair tetrahedral regu
     Consider the experiment of tossing two fair tetrahedral (regular four-sided polyhedron), each with sides labeled 1-4. Let X denote the number on the downturned face of the first tetrahedron, and Y denote the larger of the two downturned numbers.  Find the joint pmf of X and Y.  Find the marginal pmfs for X and Y.  Are X and Y indepdent?  Find P(X  
  
  Solution

