Graded exercises in statistics - Richard Norris

A wide-ranging collection of exercises for homework, practice and revision. This series covers all areas of A and AS level mathematics, including optional topics, and has been designed for the new specifications. In each section of the book the questions are graded into four sections: Basic, covering the fundamentals of the topic; Intermediate, with questions of examination standard - including many from past papers; Advanced, designed to challenge the most able students; Revision, to increase understanding and confidence. The Answers contain detailed worked solutions to key questions.