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Article #338

two pairs

#338
From: Peter Pui Tak Chiu
Date: Tue, 15 Sep 1992 02:49
16 lines
713 bytes

hi,

can anyone point out what is wrong with my calculation of getting a hand
of two pairs from a shuffled deck of cards?

    the probability i have is:

	(13 * 4C2) (12 * 4C2) (4 * 11)
	------------------------------ = 0.095078
		      52C5

which is exactly two times the correct value (0.047539).

pete
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Message-ID: <1992Sep15.024945.17690@wuecl.wustl.edu>
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Newsgroups: sci.math.stat
Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!wupost!eclnews!cec1!ppc1
From: ppc1@cec1.wustl.edu (Peter Pui Tak Chiu)
Subject: two pairs
Message-ID: <1992Sep15.024945.17690@wuecl.wustl.edu>
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Organization: Washington University, St. Louis MO
Date: Tue, 15 Sep 1992 02:49:45 GMT
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