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 ...

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 ...

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 ...

Once the ranks for the two variables are found, we apply the formula for the correlation to the ranks as follows: Both Spearman’s rank and Pearson’s correlation tests share the purpose of assessing ...

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 ...

Prof MG Chandrakanth, Retired Director, ISEC, Bengaluru, did doctoral studies in Agricultural Economics from the University of Agricultural Sciences, Bangalore and post doctoral studies in ...

It is desired to find an approximate distribution of simple form for the statistic $\bar r = \frac{x_1x_2 + \cdots + x_Tx_1} {x_1^2 + \cdots + x_T^2}$ (r̄ is an estimate of the serial correlation ...

Revue de l'Institut International de Statistique / Review of the International Statistical Institute, Vol. 4, No. 3 (Oct., 1936), pp. 355-366 (12 pages) Referring to a recent article in this Review ...

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 ...