A graphing calculator, such as a TI-84, can also be used to calculate the correlation coefficient. The following instructions are provided by Statology. Step 1: Turn on Diagnostics ...

What Is the Correlation Coefficient? The correlation coefficient is a metric that measures the strength and direction of a relationship between two securities or variables, such as a stock and a ...

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.