document.write( "Question 352126: There is a committee of 4 people. There are 5 teachers and 20 parents to choose for this committee. What is the probability that:
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document.write( "A: All are teachers?
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document.write( "B: Two are teachers and two are parents? \n" );
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Algebra.Com's Answer #251643 by ewatrrr(24785)![]() ![]() You can put this solution on YOUR website! Hi, \n" ); document.write( "*Note: The probability of x successes in n trials is: \n" ); document.write( ". \n" ); document.write( "P = nCx* \n" ); document.write( ". \n" ); document.write( "nCx = \n" ); document.write( ". \n" ); document.write( "Question states p(teacher drawn) = 5/25 0r .2 and q = .8 \n" ); document.write( ".\r \n" ); document.write( "\n" ); document.write( "A. \n" ); document.write( "4C4 = \n" ); document.write( ". \n" ); document.write( "P(4 teachers are selected) = \n" ); document.write( ". \n" ); document.write( "B. \n" ); document.write( "4C2 = \n" ); document.write( ". \n" ); document.write( "P(2 teachers and 2 parents) = |