PSYC 3031 Lecture Notes - Lecture 5: Bernoulli Trial, Null Hypothesis, Binomial Distribution
10 May 2017
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Document Summary
Classical (analytic) only for well-understood, regular objects. Frequentists (frequencies, mostly psychologists use) enables one to use irregular objects by building up empirical distributions through multiple instances. Bayesian (personalist) enables one to estimate probabilities for single events (your own subjective belief, starts on probability estimates that are meaningless) Irregular, informal objects (sheep knuckle is the original die) Independent events: no impact on what you get next. Mutuall(cid:455) e(cid:454)clusive: if (cid:455)ou get one, (cid:455)ou can"t get another one at the same time. P (a & b) = p (a) * p (b) P (a or b) = p (a) + p (b) Only if a + b are mutually exclsive. P (a or b) = p (a) + p (b) p (a&b) P (a&b) = p(a) * p (b|a) ((b given a probability that b is true if it is already known that a is true)) Bernoulli trial event that results in 1 of two mutually exclusive outcomes.
