Statistics Tutorial
Are you baffled by binomials, puzzled by proportions, dazed by
distributions, or just plain stymied by statistics? Stat Trek's
free, online Statistics and Probability tutorial can help.
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Begin lesson 1
About the Tutorial
This tutorial covers statistics, probability, and survey sampling.
It is designed to get you productive as quickly and painlessly as
possible.
After completing the tutorial, you will be able to:
Topics are introduced in short, easytounderstand modules.
Each lesson covers a single topic, and most lessons include
one or more review questions to reinforce learning.
How to Use This Tutorial
Individual lessons are accessible directly through links in the table of
contents, on the left side of the page.
If you are already familiar with probability and
statistics, you can choose any lesson at random and work effectively.
However, if you are new to statistics, you should work through lessons
in the order in which they appear; because each lesson builds on
previous lessons.
Additional Helpful Resources
As you progress through the Statistics and Probability tutorial,
take advantage of the following helpful resources.

Analytical tools. Stat Trek provides a variety of analytical tools 
online statistical tables, calculators, problem solvers  to take the drudgery
out of statistical computations. The tutorial will alert you to these tools,
most of which are free.

Sample problems. Most of the lessons include sample problems. The sample
problems help you test your knowledge. They also illustrate shortcuts and solutions
to common statistics problems.

Online help. The Stat Trek
Glossary takes the mystery out of statistical jargon. If any term or
concept is unclear, visit the Glossary for additional explanation.
Note: The Glossary can be accessed through the Help tab that appears
in the header at the top of every Stat Trek web page.