Chapter 3: Measures of Dispersion

3.1: Dispersion

1. Dispersion
2. Applications of Dispersion

3.2: Range

1. Calculation of Range for Raw or 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

3.3: Mean Deviation

1. Mean Deviation for ungrouped Data by Mean
2. Problem 1: Mean Deviation for Ungroped Data by Mean
3. Mean Deviation for ungrouped Data by Median
4. Problem 1: Mean Deviation for Ungroped Data by Median
5. Mean Deviation for ungrouped Data by Mode
6. Problem 1: Mean Deviation for Ungroped Data by Mode
7. Mean Deviation for Grouped Data by Mean
8. Problem 1: Mean Deviation for Groped Data by Mean
9. Mean Deviation for Grouped Data by Median
10. Problem 1: Mean Deviation for Groped Data by Median
11. Mean Deviation for Grouped Data by Mode
12. Problem 1: Mean Deviation for Groped Data by Mode

3.4: Quartile Deviation

1. Concept of Quartile Deviation
2. Problem-Concept of Quartile Deviation
3. Interquartile Range for Data Set Represented in Different Ways
4. More on Interquartile Range for Data Set Represented in Different Ways

3.5: Variance and Standard Deviation

1. Introduction to Variance & S.D
2. Problem 1: Introduction to Variance & S.D
3. Calculation of Variance by Direct Method
4. Problem 1: Calculation of Variance by Direct Method
5. Calculation of Variance by Proper Mean formula
6. Problem 1: Calculation of Variance by Proper Mean formula
7. Calculation of Variance by Short Cut Method
8. Problem 1: Calculation of Variance by Short Cut Method
9. Calculation of S.D by Direct Method
10. Problem 1: Calculation of S.D by Direct Method
11. Calculation of S.D by Short Cut Method
12. Problem 1: Calculation of S.D by Short Cut Method
13. Calculation of S.D by Proper Mean formula
14. Problem 1: Calculation of S.D by Proper Mean formula
15. Effect of Change of Origin and Scale on S.D

3.6: Coefficient of Dispersion

1. Coefficient of Dispersion
2. Absolute and Relative Dispersion
3. Coefficient of Dispersion and Its Measure
4. Range Coefficient of Dispersion and its measure
5. Problem-Range Coefficient of Dispersion and its measure
6. Problem-Coefficient of Dispersion and Its Measure
7. More on Problem-Coefficient of Dispersion and Its Measure
8. Quartile Coefficient of Relative Dispresion
9. More on Quartile Coefficient of Relative Dispersion
10. Mean Coeffiecient of Dispersion
11. More on Mean Coefficient of Dispersion

3.7: Moments

1. Moment
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

3.8: Skewed Vs Unskewed Curves

1. 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

3.9: Kurtosis

1. Kurtosis and Its Measurements
2. More on Kurtosis and Its Measurements
3. Problem-Measures of Kurtosis
4. More on Problem-Measures of Kurtosis