Whatever area you worked in - in science, business or state administration, you have to decide intricate problems with the enormous amount of data. From this book you know, how to compel these data to work on you.An author explains how by means of 25 classes of mathematical models to analyse data and work out problems in everyday situations. It would good gentlefolks each, who must every day make decision, maneuvering in the stream of information, - to the businessmen, managers, analysts, sociologists, scientists, students and not only.A book will be useful to all, who works with the large arrays of data and makes decision on their basis.In Russian language published first.In the format of a4.pdf is stored publishing layout.