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This guide to business statistics offers easy-to-follow explanations of how the numbers work and what they mean. Using examples taken from real-life business situations, this book supplies step-by-step explanations of how to calculate averages, rates of return, compounding rates, chi squares, probability, and more. Readers will quickly become familiar with variance analysis, regression and correlation, trend analysis, compound growth rates, and index numbers. There is a special chapter on the use of statistics with personal computers. Illustrated with charts and graphs, this book is an excellent resource for managers who need to improve their knowledge of how numbers can be developed, used, and interpreted.