document.write( "Question 970097: An employer interviews
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document.write( "10
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document.write( " people for
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document.write( "5
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document.write( " management positions in a company, and
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document.write( "5
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document.write( " of the
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document.write( "10
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document.write( " people are men. If all
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document.write( "10
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document.write( " are qualified, in how many ways can the employer fill the management positions if exactly
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document.write( "2
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document.write( " are men?
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Algebra.Com's Answer #592784 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! There are 10 ways that 2 of the 5 people chosen are men. 5C2 =10 \n" ); document.write( "1,2 \n" ); document.write( "1,3 \n" ); document.write( "1,4 \n" ); document.write( "1,5 \n" ); document.write( "2,3 \n" ); document.write( "2,4 \n" ); document.write( "2,5 \n" ); document.write( "3,4 \n" ); document.write( "3,5 \n" ); document.write( "4,5\r \n" ); document.write( "\n" ); document.write( "Look at the first and last \n" ); document.write( "5/10 * 4/9 *5/8*4/7*3/6 MMWWW\r \n" ); document.write( "\n" ); document.write( "5/10 * 4/9 *3/8*5/7*4/6 WWWMM\r \n" ); document.write( "\n" ); document.write( "The products of these are identical, even though the fractions are different.\r \n" ); document.write( "\n" ); document.write( "The product is 1200/30240 for each. \n" ); document.write( "There are 10. \n" ); document.write( "The probability is 1200/3024 \n" ); document.write( "P=0.397 or 0.40 \n" ); document.write( " |