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- Path: sparky!uunet!munnari.oz.au!jabaru.cec.edu.au!csource!gateway
- From: joe@csource.oz.au (Joe Slater)
- Newsgroups: rec.puzzles
- Subject: Guessing at random numbers - spoiler
- Message-ID: <725483453.AA06136@csource.oz.au>
- Date: Sat, 26 Dec 1992 23:04:05
- Sender: gateway@csource.oz.au
- Lines: 16
-
- ePE> I pick two numbers, randomly, and tell you one of them. You are
- ePE> supposed to guess whether this is the lower or higher one of the two
- ePE> numbers I picked. Can you come up with a method of guessing that does
- ePE> better than picking the response "low" or "high" randomly (i.e.
- ePE> probability to guess right > .5) ?
-
- If you don't pick negative numbers, then I'd do best to *always* assume the
- other number is higher. There are an infinite number of higher numbers, after
- all.
-
- If you allow negative numbers then I'd pick that your number is the lower of
- the two if it's negative, and the higher of the two if it's positive.
-
- jds
-
- * Origin: What horrors wait for me in this, the Phantom's Opera? (3:632/351)
-