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? \n" );
document.write( "
Algebra.Com's Answer #478046 by stanbon(75887) ![]() 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 \n" ); document.write( "0.2 respectively, what is the probability that the chairperson will be either Jane or Mary? \n" ); document.write( "--- \n" ); document.write( "P(J or M) = P(J)+P(M)-P(J and M) \n" ); document.write( "---- \n" ); document.write( "P(J or M) = 0.5 + 0.2 - 0.5*0.2 = 0.7-0.1 = 0.6 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " |