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OpenStudy (anonymous):
suppose P(A) = .8 and P(B) = .7 Prove that P(A intersect B) >= .5 Hint: What can you say about P(A U B)? Can I say P(A U B) = 1?
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OpenStudy (anonymous):
P( A intersect B)=P(A)P(B)=.8*.7=.56
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