SOLUTION: if IF P(A)=0.3, P(B)=0.6 and P(AandB)= 1, find P(A or B)

Question 527282: if

IF P(A)=0.3, P(B)=0.6 and P(AandB)= 1, find P(A or B)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
IF P(A)=0.3, P(B)=0.6 and P(AandB)= 1, find P(A or B)
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Formula: P(A or B) = P(A) + P(B) - P(A and B)
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Comment:
Your problem turn out to be negative..
That cannot be. Check your problem statement.
Cheers,
Stan H.
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