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In the Second Edition of this bestselling textbook, the authors use real-world examples to introduce basic principles in statistics with no prior knowledge or experience assumed. With an emphasis on describing concepts, showing through example and illustrating points with graphs and displays, this book will provide readers with a step-by-step introduction to using statistics. Chapters address the following questions: * why bother learning statistics in the first place and are they relevant to real life? * how do I make sensible tables and informative graphs? * what are descriptive and inferential statistics and how are they used? * what are regression and correlation anyway?