Re: Sklansky bucks calculator (php script)
Well, the only deviation comes from hands that went to showdown, and that's the difference between the EV and what you actually won. So calculate the EV, subtract what you won/lost, and square it.
Sum all those squares, then divide it by N-1, where N is the total number of hands that went to showdown. Then take the square root of that.
It will really be the standard deviation of the showed down hands though.
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