If you are new to statistics, or very unsure about them, then follow the tutorial at level one. There are no formulae and no maths. When you have finished level one, you will understand a lot about statistics without having to touch a calculator.
If you want to learn how to calculate statistics for yourself, then follow level two. This will explain how the formulae are read and used. When you have finished, you should be able to perform several statistical tests with ease.
If you want to understand the theory behind the techniques, then follow level three. This will tell you why the statistical tests work and what they are measuring. When you have completed this level, you will be in a great position to understand many other statistical techniques as they too are based on the same theory.
Click here to begin at level one.
Click here to begin at level two.
Click here to begin at level three.