The simple definition of a mean is that of a numeric quantity which represents the center of a collection of numbers. Here the trick lies in defining the exact type of numeric collection, as beyond ...

Generalized quasi-arithmetic means extend the classical concept of averaging by employing continuous, strictly monotonic functions to transform and then re-transform data. Originally introduced to ...

In the first part the property of "minimum error", proved by Fisher for the estimates based on the powers of the deviations from the mean, is extended to the estimates based on the powers of the ...

Chris Gallant, CFA, is a senior manager of interest rate risk for ATB Financial with 10 years of experience in the financial markets. Vikki Velasquez is a researcher and writer who has managed, ...