document.write( "Question 786936: If the probabilities that Jane, Tom, and Mary will be chosen chairperson of the board are 0.5, 0.3 and
\n" ); document.write( "0.2 respectively, what is the probability that the chairperson will be either Jane or Mary?
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Algebra.Com's Answer #478046 by stanbon(75887)\"\" \"About 
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If the probabilities that Jane, Tom, and Mary will be chosen chairperson of the board are 0.5, 0.3 and
\n" ); document.write( "0.2 respectively, what is the probability that the chairperson will be either Jane or Mary?
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\n" ); document.write( "P(J or M) = P(J)+P(M)-P(J and M)
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\n" ); document.write( "P(J or M) = 0.5 + 0.2 - 0.5*0.2 = 0.7-0.1 = 0.6
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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