Let A and B be events with P(A)=1/2,P(B)=1/3 and P(A∩B)=1/4. Find P(A^C/B^C)
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P(A^C/B^C )=(P(A^C∩B^C))/(P(B^C))=〖P(A∪B)〗^c/(1-P(B))=(1-P(A∪B))/(1-P(B))=(1-7/12)/(1-1/3)=5/8
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