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(a) Display the joint pmf of
xand
Yin a joint probability table. (b) Compute and
Y<=1by adding probabilities from the joint pmf, and verify that this equals the product of
P(x<=1)and
P(Y<=1). (c) Express the event that the total number of beds occupied at the two hospitals combined is at most 1 in terms of
xand
Y.
{x,Y:x*Y<=1}
{x,Y:x+Y<=1}
{x,Y:x-Y>=1}
{x,Y:x+Y>=1}
{x,Y:x-Y<=1}Calculate this probability. (d) What is the probability that at least one of the two hospitals has no beds occupied?
