document.write( "Question 525979: In San Francisco 30% of workers take public transportation daily ( USA Today, Decmber 21, 2005).\r
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document.write( "a. In a sample of 10 workers, what is the probability that exactly three workers take public transportation daily?\r
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document.write( "b. In a sample of 10 workers, what is the probability that at least three workers take public transportation daily? \n" );
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Algebra.Com's Answer #348274 by edjones(8007)![]() ![]() You can put this solution on YOUR website! a) x=.3, y=.7, n=10 \n" ); document.write( "nCr=n!/(n-r)!*r! \n" ); document.write( "10C3*x^3*y^7 \n" ); document.write( "=.2668 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |