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PSYC 3031 (5)
Lecture 5

PSYC 3031 Lecture 5: LECTURE 5 - FEBRUARY 14TH, 2017
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Department
Psychology
Course
PSYC 3031
Professor
Christopher Green
Semester
Winter

Description
LECTURE 5 – FEBRUARY 14 , 2017 What is Probability? -assign a probability to a particular event 3 Theories of Probability -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) Ways of Generating Random Numbers -regular, formal objects, (dice, egyptian throwing sticks) -irregular, informal objects (sheep knuckle is the original die) Basics of Probability Theory Events -independent events: no impact on what you get next -mutually exclusive: if you get one, you can’t get another one at the same time -exhaustive: list
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