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April 17th, 2013, 12:50 PM  #1 
Newbie Joined: Apr 2013 Posts: 2 Thanks: 0  probability
Hi, I've been given a task in the class, it goes like this: A fair coin is tossed n times. Find the probability that the Coin falls on the same side twice... I've been trying to use Binomial distribution but all I've got is an answer with "n", I don't really have any idea where to start... I just need tips of which type of probability needs to be used here... 
April 17th, 2013, 02:20 PM  #2  
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,942 Thanks: 1132 Math Focus: Elementary mathematics and beyond  Re: probability Quote:
Do you mean falling on the same side for two consecutive tosses?  
April 18th, 2013, 12:08 PM  #3 
Newbie Joined: Apr 2013 Posts: 2 Thanks: 0  Re: probability
Yes, the number of times is 'n'.

April 18th, 2013, 12:24 PM  #4 
Math Team Joined: Nov 2010 From: Greece, Thessaloniki Posts: 1,990 Thanks: 133 Math Focus: pre pre pre pre pre pre pre pre pre pre pre pre calculus  Re: probability [color=#000000]I don't understand, do you mean ?[/color] 

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