document.write( "Question 116211: Seven workers decided to send a delegation of 2 to their supervisor to discuss their grievances.\r
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document.write( "(a)How many different delegations are possible?\r
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document.write( "(b)If it is decided that a certain employee must be in the delegation, how many different delegations are possible?\r
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document.write( "(c)If there are 2 women and 5 men in the group, how many delegations would include at least 1 woman?
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Algebra.Com's Answer #84554 by edjones(8007)![]() ![]() You can put this solution on YOUR website! a. \n" ); document.write( "How many combinations of 2 out 7 people are there? \n" ); document.write( "n=7 r=2 \n" ); document.write( "C=n!/(n-r)!*r! \n" ); document.write( "=7!/(7-2)!*2! \n" ); document.write( "=7*6*5*4*3*2/5*4*3*2*2 \n" ); document.write( "=7*6/2=21 Ans. \n" ); document.write( ". \n" ); document.write( "b. \n" ); document.write( "6 (any one of the other people.) \n" ); document.write( ". \n" ); document.write( "c. \n" ); document.write( "6/21+5/21=11/21 chances at least one is a women. \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " \n" ); document.write( " |