What Does Pearsons R Measure. The value of r is always between 1 and 1. The sign of r depends on the sign of the estimated slope coefficient b1.
Basically a Pearson product-moment correlation attempts to draw a line of best fit through the data of two variables and the Pearson correlation coefficient r indicates how far away all these data. In statistics the Pearson correlation coefficient PCC pronounced ˈ p ɪər s ən also referred to as Pearsons r the Pearson product-moment correlation coefficient PPMCC or the bivariate correlation is a measure of linear correlation between two sets of data. Varx the variance of x.
0 indicates a negative association.
Ill keep this short but very informative so you can go ahead and do this on your own. The sign of r corresponds to the direction of the relationship. The sign of r depends on the sign of the estimated slope coefficient b1. In simple words Pearsons correlation coefficient calculates the effect of change in one variable when the other variable changes.
