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March 18th, 2010, 12:40 PM  #1 
Newbie Joined: Jun 2008 Posts: 28 Thanks: 0  "Pick a card, any card" probability question
Let's suppose you are a magician. However, you do not know how to do the "pick a card, any card" trick. At the end of each game you play, you just take a random card out and hope and pray that it matches the one the person picked. Is the probability that you chose the right card 1/52 for a 52 card deck??? Does this mean that you are probably gonna get it right one out of 52 games that you play???

March 18th, 2010, 01:15 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,835 Thanks: 733  Re: "Pick a card, any card" probability question
You will get it right on the average of 1 in 52 tries. The probability of getting it right at least once in 52 tries is 1  (51/52)^52 ~ 0.63.


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