Statistics is a subject that benefits many other disciplines in its application and has contributed tremendously to the advancement of medicine. In recognition of the central role of statistics in the health fields, certification agencies have incorporated this science into their requirements for knowledge acquisition by their members. This recognition is also reflected in the board exams, particularly those taken for clinical board specialty certification tests. This book reinforces statistical principles for those who have taken a course in the subject during their years of education. It provides many examples and exercises to allow the reader to review the material discussed. Its concise presentation and the repetition of ideas throughout the text help solidify the reader's learning and retention of knowledge of the various topics presented.