document.write( "Question 705716: There are n letters and n addressed envelopes. The probability that each letter takes place in right envelop is \n" ); document.write( "
Algebra.Com's Answer #434745 by stanbon(75887)\"\" \"About 
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There are n letters and n addressed envelopes. The probability that each letter takes place in right envelop is
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\n" ); document.write( "# of ways to succeed: 1
\n" ); document.write( "# of possible outcomes: n!
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\n" ); document.write( "P(all in right envelop) 1/n!
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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