后验分布是三种信息的结合
先验分布是反应人们在抽样前对的认识,后验分布是反映人们在抽样后对的认识。后验分布可以看作是人们用总体信息和样本信息对先验分布作调整的结果。
例题1 :Frequentist VS Bayesian interpretation of probabilities
From a frequentist perspective the probability of an event is the limit of its relative frequency as the number of trials goes to infinity.
From a Baysian perspective the probability of an event represents our reasonable expectation about it in a single trial.
Frequentist要通过