Statistics Tutorial

Are you baffled by binomials, puzzled by proportions, dazed by distributions, or just plain stymied by statistics? Stat Trek's free, on-line Statistics and Probability tutorial can help. > 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:

  • Compute the probability that a particular event will occur.
  • Use the right probability distribution (normal, t, binomial, etc.) for your analysis.
  • Estimate population means and proportions, based on sample data.
  • Determine margin of error and confidence levels.
  • Test hypotheses about means and proportions.
  • Choose the sample design that yields maximum precision for minimum cost.
  • And much more . . .

Topics are introduced in short, easy-to-understand 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 - on-line 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.

  • On-line 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.