They don’t share a great deal about the who, why and how of this free online statistics textbook. Normally, that would make me question including it here on The Free Textbook List. However, what we do know is that this is a collaborative online textbook from The Australian National University. I suspect this text is the work of a number of students and educators and is high quality reference for students. It includes online quizzes to help reinforce topics presented.

## Table of Contents for *SurfStat* Online Statistics Textbook

- Summarising And Presenting Data
- Types Of Variable
- Presenting Discrete Data
- Presenting Continuous Data
- Characteristics Of A Distribution
- Measures Of Central Tendency (“Averages”)
- Measures Of Variability
- Normal Distributions
- Presenting Data For Two Continuous Measurements
- Exploring Data In Tables
- Producing Data
- Introduction
- Principles Of Study Design
- Variation And Probability
- Introduction
- Independence And Tree Models For Calculating Probabilities
- Conditional Probability
- Bayes’ Theorem
- Random Variables
- Discrete Distributions
- Expected Value And Variance Of A Random Variable
- Continuous Random Variables
- Normal Distribution
- Normal Approximation To The Binomial Distribution
- Statistical Inference
- Populations, Samples, Estimates And Repeated Sampling
- Point Estimation And Interval Estimation
- Results From Probability Theory
- One Continuous Variable
- Comparing Means Of Two Continuous Variables
- Inference For Count Data
- More On Correlation And Regression
- Summary
- Statistical Control Charts

View this Free Online Material at the source:

SurfStat