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Probability
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A Brief Introduction to
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A Brief Introduction to
Contents
Probability
Why Study Probability?
What is Probability?
Darwin awards
Not so fast, Charles
Calculation of Probability
Independence
Venn Diagrams
Bayes's Theorem
Problems
Counting possibilities
Return to New York
Binomial Expansion
Binomial Distribution
Plotting the distro
Sharpness as N gets bigger
Continuous distributions
Problem
Infinitesimals in probability
Problem
Averaging
Gambling doesn't pay, sometimes
There are many ways to skin a guanabana
Averages of continuous variables
Properties of averages
Problems
Averages in involving multiple variables
Variance: just how fat is your distribution?
Gaussians are quite normal
Here there and everywhere
Random Walks
Correlations
Correlation vs. Causation
Linear Regression
Statistics
Introduction
Simple Example
Unbiased estimates
Hypothesis testing
But what if I goofed?
Goofing up for fame and fortune
Forming a statistic
The shape of the distribution
Variance of mean differences
There's no such thing as a brontosaurus
How to do the t-test
Example
t-test data example
Can you beat Wall Street?
What are stocks?
Stock Trading: a market minute on NASDAQ
Bob's uncanny stock investment advice
How random?
Deceptive Correlations
Stocks and Random Walks
Random Walks and Volatility
Stock beta calculation
josh 2010-10-20