randomised decision rule
... that a randomised decision rule satisfying the Bayes criterion always has a non-random alternative?
... that a <b id="mwKg"><a href="./Randomised_decision_rule" id="mwKw" rel="mw:WikiLink" title="Randomised decision rule">randomised decision rule</a></b> satisfying the <a href="./Bayes_estimator" id="mwLA" rel="mw:WikiLink" title="Bayes estimator">Bayes criterion</a> always has a non-random alternative?