A) Let's find
p(A)=1−p(A)=1−0.3=0.7
p(B)=1−p(B)=1−0.78=0.22
p(A∩B)=p(A∪B)=1−0.16=0.84
Since p(A∪B)=p(A)+p(B)−p(A∩B) then
p(A∩B)=p(A)+p(B)−p(A∪B)=0.7+0.22−0.84=0.08
Answer: p(A∩B)=0.08
B) p(A∪B)=p(A∩B)=1−0.16=0.84
Answer: p(A∪B)=0.84
C) p(A∩B)=p(A\B)=p(A)−p(A∩B)=0.3−0.16=0.14
Answer: p(A∩B)=0.14
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