document.write( "Question 393165: A poll found that 45% of the workers at the company take the bus instead of the car to work to save money. if 4 workers are selected at random what is the probability that at least 1 worker take the bus instead of the car to work? \n" ); document.write( "

Algebra.Com's Answer #279085 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Note: The probability of x successes in n trials is: 
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document.write( "P = nCx*  where p and q are the probabilities of success and failure respectively. 
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document.write( "In this case p(taking the bus)= .45 & q = .55
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document.write( "nCx = 
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document.write( "P(out of 4, at least one takes bus) = 1-P(none taking bus) = 1 - (.55)^4
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document.write( "P(out of 4, at least one takes bus) = 1 - (.55)^4 = 1 - .0915 = .9085 \n" );
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