APPLET | SOURCE | DESCRIPTION |
|
The Effects of Outliers | Illuminations, Resources for Teaching Math | Users plot points on scatterplot and then place outliers to see the effect on the regression line. more |
Restricted Range | Rice Virtual Lab in Statistics (Lane) | Users can choose one or several examples or enter data and then choose to eliminate points, shows correlation for both original and restricted data. more |
Correlation/Regression Interactive Java Applet | Pilant and Hall | Computes correlation coefficient as users place and move points. more |
Scatterplots | SticiGui (Stark) | Shows scatterplot and regression line or residual plots, averages, standard deviations, and univariate statistics for one of several examples that user can add points to or a user-entered data set. more |
RangeRestrict | Seeing Statistics (McClelland) in Fundamental Statistics for the Behavioral Sciences (Howell) | For randomly generated data sets, allows user to restrict values of either X or Y and observe changes in correlation. more |
Heterogeneous Subsamples | Seeing Statistics (McClelland) in Fundamental Statistics for the Behavioral Sciences (Howell) | Illustrates how regression or correlation analyses with heterogenous groups can be misleading. more |
Correlation & Regression | Schneiter | Shows effects on the scatterplot, r value and regression line as users manipulate one of three sample data sets by either adding a constant to x and/or y, multiplying x and/or y by a constant, or switching x and y. more |