How to calculate normative values form data ?

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Abbas Fadhil Resen

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

Joshua Michael Staley

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.

Tarun Kumar

Thanks Mr. Abbas Fadhil and Mr. Joshua Michael Staley for your answers .