This educational and methodological manual is intended for university students studying mathematical statistics; it can be used by graduate students, undergraduates, engineers to calculate statistical data of any structure. The manual includes theoretical questions for preparing for the exam, tasks for classes and independent work, a typical calculation for mathematical statistics, ...

The publication discusses the basic distribution functions that arise in the theory of reliability and their characteristics. Redundancy and its types related with reliability are also considered. The publication is intended for the students of Power Engineering Department.