The book "Test tasks on probability theory and mathematical statistics: methodical instructions for special students" under the authorship of a team of authors, including C. G. Valeeva is an indispensable resource for students studying one of the most fascinating and challenging areas of mathematics. This work offers readers not just a set of tests, but a whole methodological system that will help deepen their understanding of probability theory and statistics, as well as prepare for exams and test papers. In today's world, where data play a key role in decision-making, knowledge of probability theory and statistics is becoming especially relevant. The book covers a wide range of topics, ranging from the foundations of probability theory to more complex concepts such as distributions, samples, and statistical hypotheses. Each section contains carefully designed test assignments that will help students not only to test their knowledge, but also to develop the analytical thinking necessary for a successful study of mathematics. This book will be especially useful for students of technical specialties, as well as for anyone interested in mathematics, statistics and their application in real life. If you study at the Faculty of Mathematics, Physics, Economics or Engineering, then “Test tasks in probability theory and mathematical statistics” will become your reliable assistant in studying. It may also be of interest to teachers who are looking for quality teaching materials for their students. One of the key topics raised in the book is the importance of statistical analysis in various areas of life. In the context of big data and information technology, the ability to correctly interpret statistical data becomes a necessary skill. The book helps readers to master the basic methods of data analysis, which makes it relevant not only for students, but also for professionals working in the field of analytics and data research. The style of the authors is characterized by accessibility and clarity of presentation, which makes complex mathematical concepts understandable even for those who are just beginning to get acquainted with this topic. The book is filled with examples from real life, which allows readers to see the practical application of probability theory and statistics. In addition, it contains explanatory comments and advice on solving problems, which makes the learning process more interactive and exciting. If you’re looking for more material on this topic, check out books like “Probability and Statistics for Engineers and Scientists” by Douglas A. Stanford and "Statistics for Business and Economics" by Andrei G. Mikhailova . These works will also help you deepen your knowledge of statistics and probabilistic analysis. In conclusion, “Test tasks in probability theory and mathematical statistics” is not just a textbook, but a full-fledged tool for the development of critical thinking and analytical skills. The book will be an excellent choice for students seeking a deep understanding of the subject, and for teachers who want to enrich the learning process with quality materials. Do not miss the opportunity to take a step towards success in the study of mathematics and statistics with the help of this unique edition!