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 ...

Last month we explored how to model a simple relationship between two variables, such as the dependence of weight on height 1. In the more realistic scenario of dependence on several variables, we can ...

Many traders find that it’s easier to sustain success through stocks that meet certain characteristics, which they understand enough to trade on a consistent basis. These stocks could be in a certain ...

Regression imputation is commonly used to compensate for item nonresponse when auxiliary data are available. It is common practice to compute survey estimators by treating imputed values as observed ...

This is a preview. Log in through your library . Abstract The need to quantify agreement between two raters or two methods of measuring a response often arises in research. Kappa statistics ...