RUTA
Science Advisor
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QM makes exact predictions of probabilities and those probabilities are then measured to within experimental uncertainty. In that sense it is as well-defined as any other theory of physics..Scott said:The uncertainty is not introduced by the measurement process. It is inherent in what is being measured. The predictions that QM makes are most commonly probability distributions - not a specific result but a distribution of possible results. So when the experiment is repeated hundreds of time, QM is verified when the distribution of results matches the QM prediction.