Statistics, epidemiology and related tools

Recommended links:

http://www.statsoft.com/textbook/

http://www.childrensmercy.org/stats/category/AskProfessorMean.asp

http://faculty.vassar.edu/lowry/VassarStats.html

http://www.statsoft.com/textbook/statistics-glossary/

http://www.openepi.com/