Follow these links
A nice demo on the bell curve (normal distribution)	http://psychology.wadsworth.com/student/common/resources/activities/bcurve/curve1.html
Calculation of Mean, Mode,Median, Range, Standard Deviation	http://www.dushkin.com/connectext/psy/ch01/statistics.mhtml
Calculation of Correlation Coefficient	http://www.dushkin.com/connectext/psy/ch01/correlation.mhtml
Help understanding probability through a lottery simulation	http://rumpole.psych.purdue.edu/models/Lottery.html
Help identifying different research designs (e.g., experiments, correlations, case studies)	http://www.mcli.dist.maricopa.edu/proj/res_meth/login.html

Research-Statistics
http://psych.athabascau.ca/html/Validity/	Internal Validity Tutorial
h	Animal welfare information Center
h	lottery, montey hall problem
http://www.dushkin.com/connectext/psy/	calculating correclation desc. Stats
http://psychology.wadsworth.com/student/common/resources/indexa.html	the Bell Curve
http://www.execpc.com/~helberg/statistics.html	tons of links for statistics on the web