document.write( "Question 628526: 3. A group consists of 4 men and 3 women.
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document.write( "a) In how many ways can 3 people be selected from the group of 7?\r
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document.write( "b) In how many ways can 3 people be selected if they are all men?\r
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document.write( "c) What is the probability that the selected group will be all men? \n" );
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Algebra.Com's Answer #395696 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! 3. A group consists of 4 men and 3 women. \n" ); document.write( "a) In how many ways can 3 people be selected from the group of 7? \n" ); document.write( "7C3 \n" ); document.write( "= 7!/3!(7-3)! \n" ); document.write( "= 4!(5*6*7)/3!4! \n" ); document.write( "= (5*6*7)/3! \n" ); document.write( "= (5*6*7)/(1*2*3) \n" ); document.write( "= (5*6*7)/(2*3) \n" ); document.write( "= (5*6*7)/(6) \n" ); document.write( "= (5*7) \n" ); document.write( "= 35 \n" ); document.write( ". \n" ); document.write( "b) In how many ways can 3 people be selected if they are all men? \n" ); document.write( "4C3 \n" ); document.write( "= 4!/3!(4-3)! \n" ); document.write( "= 4!/3!1! \n" ); document.write( "= 4!/3! \n" ); document.write( "= 3!(4)/3! \n" ); document.write( "= 4 \n" ); document.write( ". \n" ); document.write( "c) What is the probability that the selected group will be all men? \n" ); document.write( "4/35 = 0.11 = 11% \n" ); document.write( " |