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Problems dealing with various probabilities, be it coin tossing or game winning.
Difficulty: 2 of 5 Latest: Attributed to Lewis Carroll Rating: 3.00
A bag contains one counter, known to be either white or black.
A white counter is put in, the bag shaken, and a counter drawn out, which proves to be white.
What is now the chance of drawing a white counter?
(No Solution Yet, 4 Comments) Submitted on 2017-11-07 by Ady TZIDON   
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