Question: Pr(D) = 0.2, Pr(N) = 0.8, Pr(P | D) = 1.00 and Pr(P | N) = 0.05. Find the joint distribution of the two events

Pr(D) = 0.2, Pr(N) = 0.8, Pr(P | D) = 1.00 and Pr(P | N) = 0.05.
Find the joint of the two events in the rare disease model where a person either has the disease (event D) or does not (event N) and either tests positive (event P) or does not (event Pc) in the above case. Use the joint to find Pr(D | P).

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