The correlation coefficient is a statistical measure of the strength of the relationship between two data variables.

In this article, we will explore the theory, assumptions and interpretation of Pearson’s correlation, including a worked example of how to calculate Pearson’s correlation coefficient, often referred ...

How to Calculate the Correlation Coefficient A simple calculation method is to use what's known as the Pearson correlation coefficient calculator, named after the English mathematician Karl Pearson.

Pearson coefficient is a type of correlation coefficient that represents the relationship between two variables that are measured on the same interval.

Pearson coefficients range from +1 to -1, with +1 representing a positive correlation, -1 representing a negative correlation, and 0 representing no relationship.

A correlation coefficient is a statistical measure that shows the strength of a relationship between two variables.

(b) The Pearson correlation coefficient (r, black) measures linear trends, and the Spearman correlation coefficient (s, red) measures increasing or decreasing trends.

You may have already heard this surprising statistic that might seem puzzling to the uninitiated: every summer, ice cream consumption and drowning rates rise in tandem, as if eating an ice cream ...