If you want the math behind it, check out wikipedia and the article titled "Z Table". Otherwise, Nzero is useful for negative expectation games as well, it's just that, well, the expectation is negative, i.e. your opponent has the edge. So, in this case the Nzero is variance/edge/edge = about 20/(-2%)/(-2%) = 50,000 hands. Meaning, at this point, about 84% of your possible results are "negative", leaving just 16% positive. A million hands would be 20Nzero or about 4.5 SD which basically means almost all of your possible results would be negative.
Posted by: nightoftheiguana2000@yahoo.com
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