Mathematics involves the use of deductive reasoning and constitutes the basic language of the physical sciences. It is a way of thinking, a disciplined and logical approach to problem solving that will be of interest to people who enjoy mathematics either for its inherent interest or as a method of problem solving in related disciplines. Mathematics is growing today more than ever before—both as a subject in its own right and in terms of its influence on science, engineering and business. Some of the more recent advances in physics, chemistry and biology use mathematical concepts. The divisions of science that previously used few, if any, mathematical skills are now putting more and more emphasis on mathematical reasoning and techniques. Statistics, which is an area of mathematics concerned with data analysis, is increasingly used in such disciplines as psychology, sociology, business, and health studies.