Arthur Fuller
artful at rogers.com
Fri Aug 26 19:55:48 CDT 2005
The host ALWAYS opens a failure door. -----Original Message----- From: dba-tech-bounces at databaseadvisors.com [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Stuart McLachlan Sent: August 26, 2005 8:06 PM To: Discussion of Hardware and Software issues Subject: RE: [dba-Tech] The Three Doors Problem On 26 Aug 2005 at 11:02, Scott Marcus wrote: > John, > > The host's intentions have nothing to do with the math. The fact is that > the host revealed a non-winning door. Therefore your odds of winning are > 2/3 if you switch. > The host's intentions are critical. If he only ever opens a second door when you are on a winner, your can only win by sticking. If he only ever opens a second door when you are on a loser, you can only win by switching. If he always opens a second door or always does so when you are wearing brown shoes,or have blue eyes or whatever, you will win 2 out of 3 times by switching. -- Stuart _______________________________________________ dba-Tech mailing list dba-Tech at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/dba-tech Website: http://www.databaseadvisors.com