The ratio estimator is a statistical estimator for the ratio of means of two random variables. Ratio estimates are biased and corrections must be made...

statistics. The ratio estimator (RE-estimator) of the tail-index was introduced by Goldie and Smith. It is constructed similarly to Hill's estimator but uses...

In statistics, the bias of an estimator (or bias function) is the difference between this estimator's expected value and the true value of the parameter...

Price–performance ratio Proportionality (mathematics) Ratio distribution Ratio estimator Rate (mathematics) Ratio (Twitter) Rate ratio Relative risk Rule...

of quality of an estimator, of an experimental design, or of a hypothesis testing procedure. Essentially, a more efficient estimator needs fewer input...

to the standard unbiased variance estimator. Proof The Taylor linearization states that for a general ratio estimator of two sums ( R ^ = Y ^ Z ^ {\displaystyle...

of return per unit, gives a rate of return. The accuracy of Sharpe ratio estimators hinges on the statistical properties of returns, and these properties...

address limitations of the sample odds ratio. One alternative estimator is the conditional maximum likelihood estimator, which conditions on the row and column...

minimum-variance unbiased estimator (MVUE) or uniformly minimum-variance unbiased estimator (UMVUE) is an unbiased estimator that has lower variance than...

Shrinkage estimator Sichel distribution Siegel–Tukey test Sieve estimator Sigma-algebra SigmaStat – software Sign test Signal-to-noise ratio Signal-to-noise...