O Level Statistics provides comprehensive coverage of the Cambridge syllabus, and will also be of invaluable use to those studying Statistics and/or Probability on any other syllabus at a similar or higher level. The chapters in this book have been constructed and arranged in such a way that the entire syllabus can be covered by working through chapters 1 and 12 in sequence. However, the teachers and students are at liberty to study the topics in an order of their choice. Chapter 13 contains work on three additional topics that can be used as and when needed. The aim of this book is to serve as a basic introduction to the study of Statistics and Probability, enabling students to gain a sound knowledge and understanding of the elementary ideas, methods and terminology used in the subject.