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 may be easiest to identify using a scatterplot, especially if the variables have a non-linear yet still strong correlation. Investopedia / Sydney Saporito What Correlation Can Tell You ...