Correlation coefficients are indicators of the strength of the linear relationship between two different variables, x and y. A linear correlation coefficient that is greater than zero indicates a ...

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. David Kindness is a Certified Public Accountant (CPA) and an expert ...

You've probably noticed certain things that have a clear relationship with one another. For example, the amount of petrol your car uses increases along with the number of kilometres you drive. Or, if ...

In this tutorial we begin our investigation of multivariate statistics using correlation and scatterplots. The idea is that we have two continuous variables and we want to examine the strength of the ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J Catalano is a CFP and Registered ...

In this paper we introduce a simple version of the “local-in-index” correlation model in which the correlation function does not depend on the index but on a synthetic index computed solely from the ...

In this tutorial we begin our investigation of multivariate statistics using correlation and scatterplots. The idea is that we have two continuous variables and we want to examine the strength of the ...