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Article #353two pairs
From: inlowm
Date: Wed, 16 Sep 1992 02:00
Date: Wed, 16 Sep 1992 02:00
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635 bytes
The problem is that you introduced ordering by first choosing what your first pair would be then by choosing what your second pair would be. By counting ordered pairs you have effectively double the numerator. Try this as your numerator: (13C2)*(4C2)*(4*11) Mark Inlow inlowm@jupiter.saic.com
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arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!ames!pasteur!dog.ee.lbl.gov!network.ucsd.edu!mvb.saic.com!cpva!inlowmShow Full Headers
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Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!ames!pasteur!dog.ee.lbl.gov!network.ucsd.edu!mvb.saic.com!cpva!inlowm From: inlowm@cpva.saic.com Newsgroups: sci.math.stat Subject: two pairs Message-ID: <11950.2ab624d8@cpva.saic.com> Date: 15 Sep 92 18:00:55 PST Organization: Science Applications Int'l Corp./San Diego Lines: 10