i didn't -- just guess work based on the average -- i assumed that the average of 13 would have to be pretty close to the average of 21 from the same sample -- your outlay seemed too far out -- not unless there was a big price difference between those you won and those you lost -- but it seemed the obvious place to look

cheers

ps the average of win 13 = $1.76, the lost 8 = $1.96, total 21 = $1.84

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