document.write( "Question 1176565: In a group of 800 married couples, what is the chance that there will be two couples with the same first names, e.g. both couples names are Joe & Mary? \n" ); document.write( "
Algebra.Com's Answer #803693 by Solver92311(821)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Impossible to calculate such a probability. There is no reliable data on the number of different first names of people, not to mention the variations across different nationalities and ethnic groups. Then there is the added complication of same-sex marriages. If your instructor actually requires a specific answer to this problem, s/he has her/his head up her/his fundament.\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "My calculator said it, I believe it, that settles it
\n" ); document.write( "\r
\n" ); document.write( "\n" ); document.write( "From
\n" ); document.write( "I > Ø
\n" ); document.write( "
\n" ); document.write( "
\n" );