Elementary Statistics" is a textbook written by author Mario Triola, which aims to provide an introduction to statistics for students who have little or no prior knowledge of the subject. The 13th edition of this textbook was published in 2018.

The book covers a wide range of statistical topics, including descriptive statistics, probability, hypothesis testing, correlation, regression analysis, and nonparametric methods. It also provides examples and exercises that are designed to help students develop their statistical skills and understanding.

The textbook is organized into 13 chapters, which progress logically from basic concepts to more advanced topics. Each chapter includes numerous examples, illustrations, and exercises to help students practice and apply the concepts covered in the chapter. Additionally, the book includes real-life applications of statistical techniques in a variety of fields, such as business, social sciences, and health care.

Overall, "Elementary Statistics" 13th edition is a comprehensive textbook that provides a solid foundation in statistical concepts and techniques for students who are new to the subject.