Free. provides everything a big, fat, hard-covered stats book does but it in an easily navigable web format. online book. designed and developed by David Lane at Rice University, with a host of helpful co-authors and funding from the National Science Foundation. All chapters include multiple video presentations on such topics as quantitative variables, histograms, and one-factor ANOVA. This is a great find for anyone who wants to better understand the multitude of fields, from politics to plate tectonics, that depend on statistical modeling.
This Electronic Statistics 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 wi