This book shows the elements of statistical science that are highly relevant for students who plan to become data scientists. However, most of the content focuses on the statistical methods and the theory behind them, rather than on data science. "The main goal of this textbook is to present foundational statistical methods and theory that are relevant in the field of data science. The authors depart from the typical approaches taken by many conventional mathematical statistics textbooks by placing more emphasis on providing the students with intuitive and practical interpretations of those methods with the aid of R programming codes. The book also takes slightly different organizations and presents a few topics that are not commonly found in conventional mathematical statistics textbooks. Notably, the book introduces both the frequentist approach and the Bayesian approach for each chapter on statistical inference in Chapters 4 - 6...I find its particular strength to be its intuitive presentation of statistical theory and methods without getting bogged down in mathematical details that are perhaps less useful to the practitioners." -Mintaek Lee, Boise State University "The statistical training for budding data scientists is different than the statistical training for budding statisticians, or other scientists. Data scientists require a different mix of theory and practice than statisticians, plus a great deal more exposure to computation than many other types of scientists. The aspects of this manuscript that I find appealing for the courses I teach: 1. The use of real data. 2. The use of R but with the option to use Python. 3. A good mix of theory and practice. 4. The text is well-written with good exercises. 5. The coverage of topics (e.g. Bayesian methods and clustering) that are not usually part of a course in statistics at the level of this book". -Jason M. Graham, University of Scranton "This book distinguishes itself with its focus on computational aspects of statistics (the appendices on R and Python and the examples throughout the text that use R). The 'cost' of this approach seems to be that much less attention is given to probability than in a standard text. There is a definite market for this approach - computational statistics/data science do not really require as much probability background as is usually given, while more focus on the way that things are actually done in practice (with software such as R or Python) is extremely beneficial to students that are looking to apply statistical methods. There is a wealth of problems in the book, and their variety (both computational and theoretical) is much appreciated. Also, the expansive appendices on R and Python wonderful, and will be of great help to students?Two major reasons that I would adopt the book are that its discussions seem to be slightly nontraditional in some cases (see above), yet still getting the salient points across. I also am happy about the examples throughout the text that use R-this is very useful for my students." -Christopher Gaffney, Drexel University "I will most likely adopt the proposed book for my class. The book seems to provide just about right level of mathematics-not too theoretical or like many other cookbooks which are available for R programming." -Tumulesh Solanky, University of New Orleans "The book is well-written and the examples are well-suited for building foundations for statistical science for data science as a discipline. The material covers most of the theoretical backgrounds in statistics. Throughout the book, the authors have used R programming to illustrate the concepts. In many cases, simulations were presented to support the theory. Each chapter has abundant practical exercises for the readers to explore the materials further. This textbook can serve as a textbook for a data science curriculum." -Steve Chung, Cal State University Fresno ? ?