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Date:   Mon, 13 Nov 2000 19:51:17 -0500
Reply-To:   Simcha Pollack <pollacks@STJOHNS.EDU>
Sender:   "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:   Simcha Pollack <pollacks@STJOHNS.EDU>
Subject:   Presidential elections: Bug in Binomial?
Content-Type:   text/plain; charset="us-ascii"

I am using SAS v6.12 t o figure the probability of getting a result as close as was obtained in Florida and NM.

I compute the cumualtive binomial as:

x=probbnml(.5 , 6000000 , 299650);

which comes out to approxiamtely .40 .

Thus, the probability of the election in Florida being within 350 (either way) is .2. This seems unreasonably high. Is it correct?

Secondly, when I use the probbnml function with 300100 as the third argument it goes down! Is this a known bug in SAS?

Simcha Pollack


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