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September 3rd, 2008, 09:04 PM  #1 
Newbie Joined: Sep 2008 Posts: 3 Thanks: 0  Probabilty of consecutive heads/tails in weighted coin toss
Hi, Can someone please help with this. I keep getting different answers to this from different people. Supposing you have a weighted coin which lands heads up 70% of the time and tails up 30% of the time. Q. What is the probability that it lands on tails 20 or more times in a row if I did this 1000 times? *Also could I have the equation on how you worked this out so that I can change the weighting, number of trials etc (I need to know this for my business!!!) Thank you very much. Zak 
September 4th, 2008, 06:13 AM  #2 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: Probabilty of consecutive heads/tails in weighted coin toss 

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