Question 860998
If P(A)=0.65, P(B)=0.45 and P(A and B)= 0.15, find the following probabilities. Drawing a Venn Diagram may help you.
Formula: P(A or B) = P(A)+P(B)-P(A and B)
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a) P(A or B) = 0.65+0.45-0.15 = 0.95
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b) P(not A) =  1 - 0.65 = 0.35
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c) P(not B) =  1 - 0.45 = 0.55
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d) P(A and (not B)) 
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e) P(not(A and B)) = 1 - 0.95 = 0.05
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Cheers,
Stan H.