document.write( "Question 437571: Dawn, Serigo, Katrina, Sarah, Ian, Maria, and Kim have all been invited to a dinner party. They arrive randomly and each person arrives at a different time.
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document.write( "a) In how many ways can they arrive?
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document.write( "b) In how many ways can Dawn arrive first and Kim last?
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document.write( "c)Find the probability that Dawn will arrive first and Kim last. \n" );
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Algebra.Com's Answer #302698 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Dawn, Serigo, Katrina, Sarah, Ian, Maria, and Kim have all been invited to a dinner party. They arrive randomly and each person arrives at a different time. \n" ); document.write( "a) In how many ways can they arrive?:: 7! \n" ); document.write( "-------------------------------------------------- \n" ); document.write( "b) In how many ways can Dawn arrive first and Kim last?::1*5!*1 = 5! \n" ); document.write( "--------------------------------------------------- \n" ); document.write( "c)Find the probability that Dawn will arrive first and Kim last. \n" ); document.write( "Ans 5!/7! = 1/(7*6) = 1/42 \n" ); document.write( "============================= \n" ); document.write( "cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |