This coursebook has been revised and updated to ensure that it meets the requirements for the Statistics 2 (S2) unit of Cambridge AS and A Level Mathematics (9709). This revised edition has been redesigned and includes updated review questions to reflect changes in the style of questions asked in the course. Cambridge AS and A Level Mathematics is a revised series to ensure full syllabus coverage. This coursebook has been revised and updated to ensure that it meets the requirements for the Statistics 2 (S2) unit of Cambridge AS and A Level Mathematics (9709). This revised edition has been redesigned and includes updated review questions to reflect changes in the style of questions asked in the course.