two pairs

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1 total messages Started by inlowm Wed, 16 Sep 1992 02:00

#353

Author: inlowm
Date: Wed, 16 Sep 1992 02:00

9 lines
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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