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Overview and Descriptive Statistics

Overview and Descriptive Statistics. Outline – Populations, Samples and Processes. Outline – Pictorial and Tabular Methods in Descriptive Statistics. Outline – Measures of Location. Outline – Measures of Variability. Chapter 1: Descriptive Statistics. 1.1 Populations, samples and processes.

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Overview and Descriptive Statistics

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  1. Overview and Descriptive Statistics

  2. Outline – Populations, Samples and Processes

  3. Outline – Pictorial and Tabular Methods in Descriptive Statistics

  4. Outline – Measures of Location

  5. Outline – Measures of Variability

  6. Chapter 1: Descriptive Statistics

  7. 1.1 Populations, samples and processes

  8. Descriptive statistics

  9. Challenger example

  10. Probability and statistics

  11. Data collection

  12. Data collection (cont’d)

  13. 1.2 Pictorial Methods

  14. Golf course yardages

  15. Histograms

  16. Histogram of power consumption

  17. Density plot of power consumption

  18. Unequal bin widths

  19. Default histogram of strength

  20. Histogram of log strength

  21. Alternative histogram of log strength

  22. Default density plot of strength

  23. Density plot of log strength

  24. Categorical data

  25. Bar plot for health complaints

  26. Sorted bar plot for health complaints

  27. Multivariate data

  28. Measures of location

  29. Quartiles, percentiles, and quantities

  30. Trimmed means

  31. Summary of categorical data

  32. Sample Variance and standard deviation

  33. Properties of variance

  34. Boxplots

  35. Comparative boxplots

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