document.write( "Question 313457: Elizabeth has 12 female friends and 10 male friends. If she is having an eight-person party, what is the probability that there will be 5 girls and 3 boys, if she chooses people at random? \n" ); document.write( "
Algebra.Com's Answer #224119 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Elizabeth has 12 female friends and 10 male friends. If she is having an eight-person party, what is the probability that there will be 5 girls and 3 boys, if she chooses people at random? \n" ); document.write( "------------------- \n" ); document.write( "# of ways to select 5 girls: 12C5 \n" ); document.write( "# of ways to select 3 boys: 10C3 \n" ); document.write( "------ \n" ); document.write( "# of ways to select 8 people randomly: 22C8 \n" ); document.write( "------------------------------------------------ \n" ); document.write( "P(5 girls and 3 boys) = [12C5*10C3]/[22C8] = 0.2972 \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " |