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- Newsgroups: sci.math
- Path: sparky!uunet!think.com!spool.mu.edu!darwin.sura.net!opusc!usceast!sumner
- From: sumner@math.scarolina.edu (David Sumner)
- Subject: Re: Marilyn Vos Savant's error?
- Message-ID: <sumner.725061541@milo.math.scarolina.edu>
- Keywords: savant
- Sender: usenet@usceast.cs.scarolina.edu (USENET News System)
- Organization: USC Department of Computer Science
- References: <1gj5grINNk05@crcnis1.unl.edu> <1992Dec22.195413.2324@umbc3.umbc.edu>
- Date: 22 Dec 92 21:59:01 GMT
- Lines: 17
-
-
- ac999239@umbc8.umbc.edu writes
-
- >You have 3 pancakes. You choose 1 and see a side is brown.
- >You know you do not have the one with gold on both sides by
- >common sense! You know there is one which is brown/brown and
- >one that is brown/gold. Therefore the probability is
- >1/2.
-
- So much for common sense!
- It's true that you have reduced the choice to two
- possibilities. However, the two choices are not equally
- likely. The brown-brown pancake is twice as likely to be
- the one you chose as is the brown-gold pancake.
-
- David Sumner
-
-