  It is shown that the wave function describes the state of the statistical
ensemble E[S] of individual particles, or the statistical average particle <S>.
This result follows from the fact that in the classical limit h=0 the
Schroedinger equation turns to the dynamic equations for the statistical
ensemble of classical particles. The statement that the wave function describes
the state of an individual particle is incompatible with the quantum mechanics
formalism. It is shown that the statistical interpretation of quantum mechanics
is a corollary of the fact, that the QM formalism is the technique of the
statistical ensemble description, restricted by constraints of the dynamic
equation linearity.
