Question 786936: If the probabilities that Jane, Tom, and Mary will be chosen chairperson of the board are 0.5, 0.3 and
0.2 respectively, what is the probability that the chairperson will be either Jane or Mary?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! If the probabilities that Jane, Tom, and Mary will be chosen chairperson of the board are 0.5, 0.3 and
0.2 respectively, what is the probability that the chairperson will be either Jane or Mary?
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P(J or M) = P(J)+P(M)-P(J and M)
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P(J or M) = 0.5 + 0.2 - 0.5*0.2 = 0.7-0.1 = 0.6
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Cheers,
Stan H.
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