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Calculate sigma and Chi square

To calculate an individual sigma value you have to take
the total percentage sum of a single 60-Seconds-run, substract 50 of it
and divide the remaining value by 14.172666. With

and

you can do Probability, Chi square and z-score calculation to determine whether you obtained a significant result in your runs.

© Eckhard Etzold, 1998-7-31