"Probability Theory" edited by E. N. Melnikova and other authors are not just a textbook, but a real find for everyone who seeks to understand the world of randomness and uncertainty more deeply. This book will become an indispensable assistant for students, graduate students and teachers, as well as for anyone interested in mathematics and its applications in various fields of science and life. In a world where randomness plays a key role, understanding probability theory becomes a necessary skill. The book covers a wide range of topics ranging from basics, such as probability axioms, to more complex concepts, such as random processes and statistical methods. The authors present the material in an accessible and logical way, which allows the reader not only to learn the theoretical foundations, but also to learn how to apply them in practice. This book will be especially interesting for those who study mathematics, statistics, economics, physics and even sociology. Students, graduate students and teachers will find in it not only theoretical calculations, but also practical tasks that will help to consolidate the knowledge gained . It will also be useful for professionals working in areas where data analysis and forecasting play an important role, for example, in finance, insurance and marketing. The topics raised in the book are diverse and relevant. The authors discuss not only classical problems, but also modern approaches to data analysis, which makes the material especially valuable in the conditions of rapid development of technologies. The book deals with such important aspects as random variables, probability distributions, mathematical expectation and variance, as well as the theorems that underlie statistics. The style of presentation of the authors is clear and logical, which makes complex concepts more accessible to understanding. Each section is accompanied by examples and tasks that help the reader not only to learn the material, but also to see its practical application. This makes the book not only a tutorial, but also a reference book that can be accessed at any time. and . N. Melnikov is a well-known Russian mathematician and teacher who made a significant contribution to the development of mathematical education. His work is distinguished by a deep understanding of the subject and the ability to convey complex ideas to a wide audience. In addition to Probability Theory, he is also the author of other textbooks and scientific articles that have gained recognition in the scientific community. If you are looking for a book that will help you understand the world of probability and randomness, “Probability Theory” from E. N. Melnikov and his colleagues - this is exactly what you need . It will be your reliable companion in the study of probability theory and will help you develop the analytical thinking necessary for a successful career in science and business. Do not miss the opportunity to immerse yourself in the exciting world of probabilities and discover new horizons of knowledge with this fascinating and useful book!