- r2=(correlation)2 is the proportion of the variation in the y-values that is explained by the regression
of y on x.
- The bigger r2=(correlation)2 is, the better the regression line fits the data.
- Which variable “x” represents, and which variable “y” represents doesn’t affect r2.
Dr. Christina Hayes
Wilson 2-263
Department of Mathematical Sciences
Montana State University
Bozeman, MT 59717
phone: 406-994-6557
fax: 406-994-1789
christina.hayes@montana.edu
(Email will likely reach me faster than a phone call)