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 Electronic Textbook on Statistics     You can search this electronic textbook for statistics topics including ANOVA, linear regression models, the effects of outliers, confidence intervals, etc. Gives explanations and discusses the topics. StatSoft Online Scientific Calculator     A helpful scientific calculator that runs in your web browser window. Holt Online Learning WebStat: School of Psychology, Univ. of New England     This site is designed to provide information, demonstrations, links and quizzes associated with the statistics and statistical methods for research design and analysis. It includes tuorials and applets WebStat Statistica Online Textbook     Online Textbook for a variety of statistical tests Statistica Website Lecture Summaries: Introduction to Statistical Methods     The website indexes lectures in Introduction to Statistical Methods course. Lecture Summaries: Introduction to Statistical Methods Regression Line Applet     Interactive applet that allows a student to plot points on a graph and see how an outlier affects the regression line of the data points. Illuminations NCTM Correlation, sum of squares and more     Explanation of Sum of Squares,Pearson's Correlation Coefficient,Hypothesis Testing,Hypothesis Testing Revisited Stats:Correlation Correlation Coefficient (Least squares)     Correlation Coefficient definition, and its connection to Least Squares Wolfram MathWorld Correlation     correlation definition Wolfram MathWorld