Question 515540
If P(A or B) = 0.5, P(A) = 0.2 and P(B) = 0.7, determine
P(A and B).
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P(A and B) = P(A) + P(B) - P(A or B)
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= 0.2 + 0.7 - 0.5
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= 0.4
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Cheers,
Stan H.
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(Points : 3)
0.10
0.35 
0.40
0.90