# collier

 Correlations are "measures of association"a measurement of linear (straight line) relationship measure of association a number that measures how related two variables arewhen two variables are related, this means that when one changes, the other changes Pearson's product moment correlation the most common correlationreferred to as "the correlation"it is used with quantitative (numerical) variablesthe symbol is r Linear relationship most commoncorrelation lies between -1 and 1the measure of how close the points in the scatterplot are to the best fitting straight lineit's negative when the line goes down, positive when the line goes up, and 0 when the line is flat regression line the best fitting straight line square of correlation r2sometimes called "variance accounted for" or "shared variance"it is interpreted as the amount of variance in the y variable accounted for by the x variable residual error in the prediction regression and correlation yeild three important numbers:slope of best fitting lineintercept of best fitting linecorrelation Authorbrittanyball42 ID175410 Card Setcollier Descriptionchp 3.2 Updated2012-10-04T01:55:19Z Show Answers