(Solved): can you explain in extra detail why the the answer to part b is 0.05? I want to make sure my logic i ...
can you explain in extra detail why the the answer to part b is 0.05? I want to make sure my logic is correct.
1. Suppose that X and Y have a discrete joint distribution for which the joint probability function is p(x,y)={k?x+y?0? for x=?2,?1,0,1,2 and y=?2,?1,0,1,2 otherwise. ? (a) Determine the value of the constant, k. (b) Determine P(X=0,Y=?2). (c) Determine P(X=1). (d) Determine P(?X?Y??3).