document.write( "Question 1127127: For a gift exchange 10 people names are written on slips of paper and placed in a bowl. The slips of paper are mixed up and, each person selected one name.\r
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document.write( " a) what is the probability that everyone select their own name? \r
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document.write( "b) what is the probability that nobody selects his or her own name?\r
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document.write( "The answer for a) is about 2.7557(10^7)
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document.write( "The answer for b) 1-2.7557(10^-7) I don’t know they got that please help thank u \n" );
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Algebra.Com's Answer #743508 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "To add to the response by tutor @ikleyn.... \n" ); document.write( "The answer to part b can't be 1 - 2.7557*10^-7. That would make the sum of the answers to parts a and b equal to 1. \n" ); document.write( "That would imply that the only possible outcomes are each person getting his own name or no people getting their own names. That leaves out the large number of outcomes where some but not all of the people get their own names. \n" ); document.write( " |