ERIC Number: EJ443593
Record Type: Journal
Publication Date: 1991
Reference Count: N/A
Lines of Best Fit by Graphics and the Wald Line.
Henriksen, Melvin, Ed.; Wagon, Stan, Ed.
American Mathematical Monthly, v98 n9 p835-39 Nov 1991
Using a graphical analysis of the linear best fit for a set of Cartesian data points, the drawbacks of the least-squares method for determining this best fit are discussed. The Wald Line, which utilizes a variation of the geometric mean, is proposed as the best alternative to the least-squares regression line particularly when the data contain outliers. (JJK)
Publication Type: Collected Works - Serials; Guides - Classroom - Teacher; Journal Articles
Education Level: N/A
Authoring Institution: N/A