Rigorous Reasoning

Concept · Foundations

Base Rate

The background prevalence or prior frequency relevant to the hypothesis being assessed.

Why it matters

Ignoring the base rate is the most common and most costly Bayesian error.

Where this shows up

Units and lessons using this concept

Following the links will take you to the page where this term is introduced in context.

Related

Other concepts in Foundations

A, E, I, O PropositionsAccessibility RelationArgumentAtomic StatementAuthorial IntentBayes FactorBurden of Proof in InterpretationCalibrationCardinalityCartesian ProductCategorical PropositionCategorical Syllogism