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STAT 2507A &acirc;€“ August 12

# STAT 2507A &acirc;€“ August 12 - STAT2507AAugust12...

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1 STAT 2507A – August 12 Jerry Situ Review Summer 2009

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Overview 1. Purpose of statistics 2. How to describe information 1. Population vs sample 2. Types of variables 3. Visual displays (pie, bar, graph, histogram, relative frequency histograms,  box plots) 3. Descriptive statistics 1. Things to look for: Center, spread, shape 2. Center: Mean, median, mode 3. Spread: Range, interquartile range, standard deviation, variance 4. Shape: skew, symmetric, bell 4. Interpreting Descriptive statistics 1. Empirical rule 2. Tchebychev
Overview (2) 1. Probability 1. Random   events, sample space 2. Calculating probabilities (experiment method, theoretic method through  combinations and permutations) 3. Combining events, conditional probabilities, independent events,  complementary events, Bayes’ rule 4. Displaying probabilities (venn diagrams, probability tree, probability table) 2. Data Distributions 1. Binomial, poisson, hypergeometric, normal (continuous), uniform  (continuous) 2.

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STAT 2507A &acirc;€“ August 12 - STAT2507AAugust12...

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