Estimating equations are used to develop simple non-iterative estimates of the κ-coefficient that can be used when there are more than two random raters and/or unbalanced data (each subject is not ...

A method often used for computing the variance of a complicated sample estimate is to first apply the Taylor approximation to reduce non-linear forms of the variables to linear form. This article ...

As a small-business leader, taking care of the bottom line is critical for growth, as well as for maintaining your current payroll and customers. Understanding sales price variance can help you ...

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 ...