perplexus.info :: Probability : A Coin Game

A Coin Game (Posted on 2004-05-20)

Alex flips a fair coin 20 times. Bert spins a fair coin 21 times. Bert wins if he gets more heads than Alex, else Alex wins. Note that Alex wins if there is a tie. What is the probability that Bert wins?

See The Solution Submitted by Brian Smith

Rating: 3.5000 (4 votes)

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answer

| Comment 9 of 12 |

Probability that Bert will win the game is 1/2.

Posted by K Sengupta on 2007-03-09 05:07:21

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