Elvis Picardo is a regular contributor to Investopedia and has 25+ years of experience as a portfolio manager with diverse capital markets experience. Yarilet Perez is an experienced multimedia ...

The correlation function is a useful signal-analysis tool that engineers often overlook. Its formidable equation, which you have probably not thought about since your undergraduate signals and systems ...

What is a correlational study? There are many correlational study definitions but I am going to tell you a simple one. The correlational study is the study of the relationship between two variables.

In the first case, there is a strong upward-sloping relationship between X and Y; in the second case, no apparent relationship; in the third case, a strong downward-sloping relationship. Note the ...

This example defines modules to compute correlation coefficients between numeric variables and standardized values for a set of data. /* Module to compute correlations */ start corr; n=nrow(x); /* ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Crime rates rise with ice cream consumption. Divorce rates rise as people use more margarine. These are classic examples of spurious correlations (Fletcher, 2014). Statistically, these variables move ...

Currency pair correlations show whether there is a relationship between the value of two separate forex pairs. Here, we explain what a currency correlation is and how to trade forex correlations with ...