Investopedia

Coefficient of Variation: Definition and How to Use It

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 ...
isixsigma on MSN

Coefficient of Variation: Understanding the Differences in Your Data

CoV is a simple calculation to measure the variation in your process. Let’s see how to do the calculation, explore an ...
Investopedia

Understanding the Correlation Coefficient: A Guide for Investors

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. David Kindness is a Certified Public Accountant (CPA) and an expert ...
JSTOR Daily

On the Estimation of the Correlation Coefficient from Grouped Data

This article proposes two estimators of the correlation coefficient, ρ, when statisticians will not construct a master file on individuals because of confidentiality issues. The approach depends on ...
JSTOR Daily

Maximum Likelihood Estimation of a Polynomial Regression Function with Grouped Data

Journal of the Royal Statistical Society. Series C (Applied Statistics) When the data in a polynomial regression problem come in grouped form, finding the maximum likelihood estimates of the ...