The Economist numbers guide : the essentials of business numeracy / Richard Stutel.

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Key concepts ; Summary ; Ways of looking at data ; Fractions, percentages and proportions ; Index numbers ; Notation ; Probability ; Counting techniques ; The numerical base ; IP addresses ; Encryption ; 2. Finance and investment ; Summary ; Interest ; Annuities ; Investment analysis ; Inflation ; Interest rate problems in disguise ; Exchange rates ; 3. Descriptive measures for interpretation and analysis ; Summary ; Distributions ; Normal distributions ; 4. Tables and charts ; Summary ; Tables ; Charts ; 5. Forecasting techniques ; Summary ; Time series ; Trends ; Seasonal adjustment ; Cycles ; Residuals ; Cause and effect ; Identifying relationships with regression analysis ; Forecast monitoring and review ; 6. Sampling and hypothesis testing ; Summary ; Estimating statistics and parameters ; Confidence ; Other summary measures ; Non-parametric methods ; Hypothesis testing ; 7. Incorporating judgments into decisions ; Summary ; Uncertainty and risk ; Decision trees ; Perfect information ; The expected value of sample information ; Making the final decision ; 8. Decision-making in action ; Summary ; Game strategy ; Queueing ; Stock control ; Markov chains: what happens next? ; Project management ; Simulation ; 9. Linear programming and networks ; Summary ; Identifying the optimal solution ; Traps and tricks ; Multiple objectives ; Barrier/internal point method ; Networks.

In addition to general advice on basic numeracy, the guide points out common errors and explains the recognised techniques for solving financial problems, analysing information of any kind and effective decision-making. Over 100 charts, graphs, tables and feature boxes highlight key points.