Math Tool: Correlation / Regression

Tool: Correlation / Regression

Screenshot:

Go to:

http://www.coe.tamu.edu/.../Correlation (opens a new window)

Description:

Correlation and Regression offers a series of linked workspaces in which the student can enter data directly into a grided scatterplot complete with user controlled scaling of the X and Y axes. Points placed on the scatterplot are automatically entered into a deviation-score summary table (separate applet) and values from the summary table are passed to a formulas applet that displays computations for means, standard deviations, covariance, correlation, slope, and intercept values. (Only the initial screen is illustrated here.) Students can observe how values are computed and can request more detailed information about the interpretation and computation of those values (i.e., mean, standard deviation, etc.). Any changes made in the summary table are reflected in the dynamic updating of the scatterplot and formula applets. Data can be imported or exported into the summary table and the scatterplot can be printed.

Technology Type:

Java Applet

Author:

Bob Hall and Arlen Strader

Language:

English

Cost:

Does not require payment for use

Average Rating:

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