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Usenet Newsgroups : rec.puzzles Hall of Fame


The rec.puzzles Hall of Fame is a compilation of over 500 of the most popular puzzles that have been posted and discussed in the rec.puzzles newsgroup. In most cases a detailed solution has been provided.

Many of these puzzles also appear in Braingle's own collection.

   
rec.puzzles
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Hall of Fame
alt.brain.teasers
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FAQ
Categories : probability : bayes.p

One urn contains black marbles, and the other contains white or black
marbles with even odds.  You pick a marble from an urn; it is black;
you put it back; what are the odds that you will draw a black marble on
the next draw?  What are the odds after n black draws?


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