This article explains the significance of linear correlation coefficients for investors, how to calculate covariance for stocks, and how investors can use correlation to predict the market.

What Correlation Can Tell You Correlation shows the strength of a relationship between two variables and is expressed numerically by the correlation coefficient.

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.

However, finding stocks that are similar to each other can be a challenge. One of the most relied-upon workaround for this is using statistical analysis methods like correlation coefficients to ...

In this article, we will explore the theory, assumptions and interpretation of Spearman’s rank correlation, a flexible statistical tool that assesses the strength and direction of the relationship ...

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 ...

This paper introduces the normal probability plot correlation coefficient as a test statistic in complete samples for the composite hypothesis of normality. The proposed test statistic is conceptually ...

In the medical literature we often find the use of the Pearson correlation coefficient to describe the association between two variables. However, unless the marginal distributions of the two random ...