Measures of Dispersion, Moments and Skewness

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Chapter 3: Measures of Dispersion, Moments and Skewness (78 videos)   (Practice Test)
3.1: Dispersion  (Practice Test)
  1. Applications of Dispersion
  2. Dispersion
3.2: Measures of Dispersion  (Practice Test)
  1. Range of Ungrouped Data
  2. Problem 1: Calculation of Range for Raw or Ungrouped Data
  3. Calculation of Range for Grouped Data
  4. Problem 1: Calculation of Range for Grouped Data
  5. Mean Deviation of Ungrouped Data
  6. Problem-Mean Deviation for Ungrouped Data by Mean
  7. Problem-Mean Deviation for Ungrouped Data by Median
  8. Mean Deviation of Ungrouped Data from Mode
  9. Problem-Mean Deviation for Ungrouped Data by Mode
  10. Mean Deviation of Grouped Data from Mean
  11. Problem-Mean Deviation for Grouped Data by Mean
  12. Mean Deviation of Grouped Data from Median
  13. Problem-Mean Deviation for Grouped Data by Median
  14. Calculate the Mean Deviation from the following Group Data according
  15. Problem-Mean Deviation for Grouped Data by Mode
  16. Interquartile Range for Data Set Represented in Different Ways
  17. More on Interquartile Range for Data Set Represented in Different Ways
  18. Making and Interpretation of Box-Whisker Plot
  19. More on Making and Interpretation of Box-Whisker Plot
  20. Problem- Making and Interpretation of Box-Whisker Plot
  21. More on Prob -Making and Interpretation of Box-Whisker Plot
  22. Consistency Test for Data
  23. Situations Where We Use Range or Semi-IQR
  24. Situations Where We Use Mean or Standard Deviation
  25. Variance and Standard Deviation
  26. Problem 1: Introduction to Variance & S.D
  27. Variance and Standard Deviation of Ungrouped Data
  28. Calculation of the Variance and Standard Deviation by Direct Method
  29. Variance and Standard Deviation of Ungrouped Data by Short Method
  30. Variance and Standard Deviation of Ungrouped Data by Short-cut Method
  31. Variance and Standard Deviation of Grouped Data
  32. Variance and Standard Deviation of Grouped Data by Short Method
  33. Variance and Standard Deviation of Grouped Data by Short-cut Method
  34. Variance and Standard Deviation of Grouped Data by Coding Method
  35. Effect of Change of Origin and Scale on S.D
  36. Properties of Variance and Standard Deviation
  37. More on Properties of Variance and Standard Deviation
  38. More on Properties of Variance and Standard Deviation
3.3: Coefficient of Dispersion  (Practice Test)
  1. Absolute and Relative Dispersion
  2. Concept of Quartile Deviation
  3. Problem-Concept of Quartile Deviation
  4. Coefficient of Dispersion and Its Measure
  5. Range Coefficient of Dispersion and its measure
  6. Problem-Range Coefficient of Dispersion and its measure
  7. Coefficient of Variation and its Measure
  8. More on Problem-Coefficient of Dispersion and Its Measure
  9. Quartile Coefficient of Relative Dispersion and its Measure
  10. Quartile Coefficient of Relative Dispersion and its Measure
  11. Mean Coefficient of Dispersion
  12. Standardized Variable or Z-score
  13. Problem - Standardized Variable or Z-score
  14. Characteristics of Measures of Quartile Deviation
3.4: Combined Variance
  1. Introduction to Combined Mean and Variance
  2. Prob-Introduction to Combined Variance
3.5: Trimmed and Winsorized Measures
  1. Trimmed and Winsorized Measures
3.6: Moments  (Practice Test)
  1. Introducing Moments
  2. Introducing Moments
  3. More on Introducing Moments
  4. Problem-Introducing Moments
  5. More on Problem-Introducing Moments
  6. Problem-Moments for group data
  7. Problem-Moments for group data
  8. Prob-Relation Between Mean Moments and Raw Moments
  9. More on Prob-Relation Between Mean Moments and Raw Moments
  10. Sheppards Corrections for Grouping Error
  11. Problem-Sheppards Corrections for Grouping Error
3.7: Skewed vs Unskewed Curves  (Practice Test)
  1. Introducing Skewness
  2. Skewed Vs Unskewed Curves
  3. More on Skewed Vs Unskewed Curves
  4. Measures of Skewness
  5. More on Measures of Skewness
  6. Problem-Measures of Skewness
3.8: Kurtosis  (Practice Test)
  1. Kurtosis and Its Measurements
  2. More on Kurtosis and Its Measurements
  3. Problem-Measures of Kurtosis
  4. More on Problem-Measures of Kurtosis