The Frequentist school of [[statistics]] is the dominant school taught in most statistics courses (often without being labeled as such). Constrast with [[Bayesian statistics]]. For frequentists, - Parameters are known and fixed - Probability theory describes the processes that generate data, probability is never applied to the parameters or hypotheses - The chance processes that generate data are used to estimate parameters or make inferences about hypotheses related to those parameters - We assume the frequentists properties of estimators and test statistics (bias, consistency, efficiency). These properties have to do with frequency (repeated sampling).