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Old 12-07-2004, 05:43 PM
BillC BillC is offline
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Join Date: Sep 2002
Posts: 115
Default Re: \"How many hands do I need to play...\" definitive answer

To get within 10% of actual win rate you need a sample of about 40,000 hours. To get an estimate to within 20%, you need only 10,000 hours. I am assuming that SD/EV=10 here. If you want to figure it out using your own stats, the 95% confidence formula is

n=((196*SD)/(EV*r))^2

where n=no. of hands needed to estimate EV per hour (=win rate) to within r% of the actual EV. ^2 means "squared".

BillC, Ph.D.
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