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Date/Time: Fri, 27 Jan 2023 08:47:29 +0000



Standard Deviation for Sample instead of whole population

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[2022-11-20 18:12:11]
raheemrazzak - Posts: 22
Is there any way to get the Standard Deviation for the Sample (N-1) calculation? Currently, the only study offered by SC is for the whole population. Or can I use this study with some other study to get a sample one.
[2022-11-21 18:06:38]
John - SC Support - Posts: 21711
There is not a built-in function for the standard deviation of the Sample. We only have the one Standard Deviation study that divides by N.

The only way you could do this would be to do the calculation for the standard deviation yourself. Since you would not be looking at a lot of data points (N versus N-1 will only give a significant difference in a small number of data points), you could use the Spreadsheet Study to do this. Refer to the following:
Spreadsheet Study
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[2022-11-21 18:12:02]
raheemrazzak - Posts: 22
Thanks John, yeah that's what I had in mind too, the difference shouldn't be a lot. Appreciate your help.

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