Calculating R-Squared to see how well a regression line fits data
Understanding why correlation does not imply causality (even though many in the press and some researchers often imply otherwise)
Covariance, Variance and the Slope of the Regression Line
This video is from the Khan Academy subject of Math on the topic of Probability and statistics and it covers Estimating the line of best fit exercise.
Proof Part 2 Minimizing Squared Error to Line
Psychology is designed to meet scope and sequence requirements for the single-semester introduction to psychology course. The book offers a comprehensive treatment of core concepts, grounded in both classic studies and current and emerging research. The text also includes coverage of the DSM-5 in examinations of psychological disorders. Psychology incorporates discussions that reflect the diversity within the discipline, as well as the diversity of cultures and communities across the globe.Senior Contributing AuthorsRose M. Spielman, Formerly of Quinnipiac UniversityContributing AuthorsKathryn Dumper, Bainbridge State CollegeWilliam Jenkins, Mercer UniversityArlene Lacombe, Saint Joseph's UniversityMarilyn Lovett, Livingstone CollegeMarion Perlmutter, University of Michigan
R-Squared or Coefficient of Determination
Regression Line Example
Second Regression Example
Introduction to the idea that one can find a line that minimizes the squared distances to the points