The only Internet Resource about Statistics Recommended by Encyclopedia Britannica
StatSoft has freely provided the Electronic Statistics Textbook as a public service for more than 12 years now.
This Textbook offers training in the understanding and application of statistics. The material was developed at the Statsoft R&D department based on many years of teaching undergraduate and graduate statistics courses and covers a wide variety of applications, including laboratory research (biomedical, agricultural, etc.), business statistics, credit scoring, forecasting, social science statistics and survey research, data mining, engineering and quality control applications, and many others.
The Electronic Textbook begins with an overview of the relevant elementary (pivotal) concepts and continues with a more in depth exploration of specific areas of statistics, organized by “modules,” accessible by buttons, representing classes of analytic techniques. A glossary of statistical terms and a list of references for further study are included.