Measuring the Variance of a Population - Analytics Database - Teradata Vantage

SQL Functions, Expressions, and Predicates

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-01-12
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lifecycle
latest
Product Category
Teradata Vantageā„¢

If your data represents the entire population for the variable, then use the VAR_POP function.

As the sample size increases, the values for VAR_SAMP and VAR_POP approach the same number, but you should always use the more conservative VAR_SAMP calculation unless you are absolutely certain that your data constitutes the entire population for the variable.