Question 1143842
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If P(A) = 0.5,  P(B) = 0.5  and  P(A and B) = 0, then


    P(A or B) = P(A) + P(B) - P(A and B) = 0.5 + 0.5 - 0 = 1 = 100%.    <U>ANSWER</U>
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Solved.