Category:Efficiency (Statistics)

This category contains results about efficiency in the context of statistics.
Definitions specific to this category can be found in Definitions/Efficiency (Statistics).

Let $T_0$ and $T_1$ both be statistics used as estimators.

Efficiency is a comparison of the variances of $T_0$ and $T_1$.

Thus $T_0$ is of higher efficiency than $T_1$ if and only if $T_0$ has a smaller variance than $T_1$.