For example if $U_1$ and $U_2$ are unbiased estimators of $\theta$, so is $\frac{U_1+U_2}{2}$
Does this class of unbiased estimators of a parameter form some well studied algebraic structure?
2026-04-13 14:03:11.1776088991
Does the class of unbiased estimators of a parameter form some algebraic structure?
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