Rigorous Reasoning

Concept · Foundations

Prior Probability

The degree of confidence assigned to a hypothesis before the new evidence is taken into account.

Why it matters

Bayesian updating starts with a prior rather than pretending the inquiry begins from nowhere.

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 IntentBase RateBayes FactorBurden of Proof in InterpretationCalibrationCardinalityCartesian ProductCategorical Proposition