Free statistical analysis tools, instructional demos, exercises and problems.

The Probability Web is a collection of probability resources designed to be especially helpful to researchers, teachers, and people in the probability community.

Links to Datasets, Repositories of Datasets, Textbook Datasets, Additional Data Sources, Lists of Data Resources, and Search Engines.

The web's most extensive math resource.

Compute expert-level answers using Wolfram's breakthrough algorithms, knowledgebase and AI technology.

Non-profit organization that had developed simple You-Tube videos on basic Math concepts as well as concepts in other subjects

Excellent compilation of material on the history of mathematics and biographies of famous mathematicians

Links to teaching materials, software and websites

List of sites which offer math problems, both on the web and published in journals or newspapers

The NIST Handbook and Digital Library of Mathematical Functions.

R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms, Windows and MacOS.

Stata is statistical software for data science, helping to obtain and manipulate data, explore, visualize, model, and make inferences.