SOLUTION: If P(E)= 0.55, P(E or F)=0.80, and P(E and F)=0.05, Find P(F).

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Question 1109848: If P(E)= 0.55, P(E or F)=0.80, and P(E and F)=0.05, Find P(F).
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If P(E)= 0.55, P(E or F)=0.80, and P(E and F)=0.05, Find P(F).
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P(E or F) = P(E)+P(F)-P(E and F)
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0.8 = 0.55 + P(F)-0.05
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0.85-0.55 = P(F)
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P(F) = 0.3
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Cheers,
Stan H.
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