Check your Assignments
Activities
Non-linear Regression Part BCorrelation
Least Squares Regression Line
- Play with the Least Squares method of Linear Regression. Try to minimize those squares!
- Make a scatterplot and watch how the correlation and regression line changes.
- Play with Regressions - Play with a scatterplot. Here are some things to try:Create a bunch of points (by clicking on the graph) on the grid.Then check the student guess box.Drag the points on the line until you get what you think is the 'best fit'.Click on the computer fit to check your work.Have fun!
- Rotate Regression Lines - Find a regression line for your own scatterplot and try to minimize the sum of the residuals.
Residual Plots
- Residual Plots Part I - A residual plot is simply a plot of the residuals (typically on the y-axis) versus the explanatory variable (x-axis).
Non-Linear Regression
- Transformations - working with transforming (linearizing) data.
Categorical Data (Two-way tables)
- Bivariate, Categorical Data - This links to the SurfStat site.