---
id: uncertainty
aliases: []
tags: []
---
# Uncertainty

The term "uncertainty" refers to the possibility of multiple outcomes.

## Aleatory Uncertainty

> [!info] Also Known As
> * statistical uncertainty
> * stochastic uncertainty
> * random error

Aleatory uncertainty is inherent randomness in data that can't be explained away.

## Epistemic Uncertainty

> [!info] Also Known As
> * systematic uncertainty
> * model uncertainty

Epistemic uncertainty is that which arises from a lack of knowledge.