# Paley–Zygmund inequality

> inequality applying to finite variance random variables

**Wikidata**: [Q2718608](https://www.wikidata.org/wiki/Q2718608)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Paley–Zygmund_inequality)  
**Source**: https://4ort.xyz/entity/paley-zygmund-inequality


## References

1. Freebase Data Dumps. 2013