Provides several graphical representations of multivariate data. This paper explains the graphs such as the scatter plot and several other graphs as well. Site is presented in notes and outline format.

Given a set of data, the student will be able to generate a scatterplot, determine whether the data are linear or non-linear, describe an association between the two variables, and use a trend line to make predictions for data with a...

A tutorial on how to find the line of best fit or least-squares regression line for a set of data in a scatter plot using different methods and calculations.