We perform analysis of Bell's arguments (and their generalizations) on the basis of the frequency approach to probability theory (R. von Mises, 1919). This analysis demonstrated that there are no physical arguments which support the existence of `probability distributions' which were formally used in all investigations based on the conventional (Kolmogorov, 1933) approach to probability theory. In fact, probability distributions may fluctuate from run to run (no collectives). This chaos on the microlevel need not contradict to the stabilization of frequencies for physical observables. We discuss the relation to the completeness of quantum mechanics (and the efficiency of detectors). If micro-reality is also statistically stable (as the macr...