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 ...

What is Pearson correlation test, Pearson product moment correlation or Pearson r? Pearson’s correlation helps us understand the relationship between two quantitative variables when the relationship ...

When investing, your capital is at risk. The value of your investments can go down as well as up and you may get back less than you put in. The content of this article is provided for information ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

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 ...

A simple and accurate approximation to the distribution of the correlation coefficient in normal samples is obtained. The resulting approximation compares favourably with previous approximations.

Almost every day you can find in media commentary that XYZ is causing stocks to fall (or rise). Such definitive statements are common—but what’s almost always missing is statistical proof. And if you ...

Samples from non-normal bivariate distributions are simulated and the densities of the sample product-moment correlation coefficient, r, estimated and compared with the corresponding normal theory ...