9: Numerical Methods for Summarizing Data — Read

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“While the individual man is an insoluble puzzle, in the aggregate he becomes a mathematical certainty. You can, for example, never foretell what any one man will do, but you can say with precision what an average number will be up to.”

Sir Arthur Conan Doyle from The Sign of the Four

9.1: What to Expect
9.2: Summarizing Data
9.3: Location
9.4: Variation
9.5: Percentiles
9.6: Critical Analysis
9.7: Summary
9.8: About the Quotation
9.9: Practice and Exploration
9.10: Collaborative Activity
9.11: References

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