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Jan 14, 2023 at 09:27 AM

Right Formula of Standard Deviation in XYZ

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Hi all,

When I run the XYZ, which is the right formula of standard deviation? The standard deviation of sample or standard deviation of population?

In SAP, I can find the standard deviation of sample, which is wrong in my opinion, Do you have any insight? Why is the standard deviation of sample is used? The population of my interest is the last 12 months where I have all the data. I do not take a sample. Do I miss something?

A link for the Standard Deviation I find in SAP.

https://help.sap.com/docs/SAP_INTEGRATED_BUSINESS_PLANNING/bf99e931b8d44aafb4e306ec3602cbdd/5eb49b5de7f540daa87c608b498b1b53.html?version=2202&locale=en-US

Thank you very much in advance.

Kind regards,

DK