The formula for Pearson’s correlation coefficient, r, relates to how closely a line of best fit, or how well a linear regression, predicts the relationship between the two variables. It is presented ...

A correlation coefficient of 0 means there is no linear relationship. Correlation coefficients are used in science and finance to assess the degree of association between two variables, factors ...

Correlation shows the strength of a relationship between two variables and is expressed numerically by the correlation coefficient. The correlation coefficient's values range between -1.0 and 1.0.