# Popoviciu's inequality on variances

> Probability theory upper bound

**Wikidata**: [Q7229466](https://www.wikidata.org/wiki/Q7229466)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Popoviciu's_inequality_on_variances)  
**Source**: https://4ort.xyz/entity/popoviciu-s-inequality-on-variances