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Underlying Calculation for Standard Deviation Factors

Publiseringsdato: Apr 28, 2025
Oppgave
What is the underlying calculation tableau uses for standard deviation. More specifically, what is the underlying calculation for the standard deviation factors in Tableau?
Trinn
The calculation Tableau Desktop is running for Standard Deviation is what every text book lists as the definition of standard deviation.

The -1/1 factor is AVG - 1*STDEV and AVG + 1*STDEV and the -2/2 factor is AVG - 2*STDEV and AVG + 2*STDEV.
Flere ressurser
The attached workbook contains examples of calculating the -1/+1 manually using Table Calculation Functions.
Knowledge-artikkelnummer

001458006

Vedlegg

Stdev.twbx

449 KB

 
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