How to calculate normative valves from Mean and standard deviation.
Standard values are calculated on the basis of the separation of positive and negative values individually to find the exact standard deviation value as a risk
I am entirely sure what you mean by normative. Here is good discussion on StackExchange that might be helpful
https://stats.stackexchange.com/questions/231793/finding-min-and-max-using-sd#:~:text=So%20for%20example%20if%20the,%2B15%C3%974%3D160.
Thanks Mr. Abbas Fadhil and Mr. Joshua Michael Staley for your answers .
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