Establishing theoretical extreme values of a variation series presented by a normal distribution

The proposed methodology has been developed in order to focus on the search for a specific failed track element and rolling stock or other inconsistency, as well as the technological component of ensuring the transportation process (placement and fastening of cargo, formation of train composition, choice of train driving mode) on the quality of functioning, which depends on the prevention of gatherings. In the developed methodology, the types of technical component, technological components or the corresponding groups of causes of rolling stock derailments indicated above are called classes. The class distribution can be attributed to a statistical classification, i.e., during an internal investigation, the data of each class K (“path”, “wagon” and “locomotive”) They can be represented by a set of pnk parameters of the next descent, which are input data for solving the classification problem. The result of solving this problem should be the attribution or degree of involvement of each of the classes in a specific meeting.