Chapter 2: Measure of central Tendency or Averages

2.1: Averages

1. Average
2. Applications of Different Averages

2.2: Arithmetic Means

1. A.M of Ungrouped Data by Direct Method
2. Problem 1: A.M of Ungrouped Data by Direct Method
3. A.M for Grouped Data by Direct Method
4. Problem 1: A.M for Grouped Data by Direct Method
5. A.M for Ungrouped Data by Short formula Method
6. Problem 1: A.M for Ungrouped Data by Short formula Method
7. A.M for Grouped Data by Short formula Method
8. Problem 1: A.M for Grouped Data by Short formula Method
9. A.M for Ungrouped Data by Coding Method
10. Problem 1: A.M for Ungrouped Data by Coding Method
11. A.M for Grouped Data by Coding Method
12. Problem 1: A.M for Grouped Data by Coding Method
13. Combined Arithmetic Mean
14. Where to Use Arithmatic Mean
15. Applications of Weighted Averages
16. Introducing Weighted Average
17. Problem - Weighted Average for Ungrouped Data

2.3: Median and Quantiles

1. Median for Ungrouped Data
2. Problem 1: Median for Ungrouped Data
3. Quartiles for Individual Observations
4. More on Quartiles for Individual Observations
5. Problem-Quartiles for Individual Observations
6. Quartiles for a Frequency Distribution
7. Problem-Quartiles for a Frequency Distribution
8. Estimating Quartiles for Grouped Data
9. Quantiles from Discrete Data
10. More on Quantiles from Discrete Data
11. Quartiles From Grouped Data
12. More on Quartiles From Grouped Data
13. Deciles and Percentiles from Grouped Data
14. More on Deciles and Percentiles from Grouped Data
15. Problem - Deciles and Percentiles from Grouped Data
16. Problem - Deciles and Percentiles from Grouped Data

2.4: Mode

1. Median for Grouped Continuous Data
2. Problem 1: Median for Grouped Continuous Data

2.5: Geometric Mean & Harmonic Mean

1. Geometric Mean of Ungrouped Data
2. Harmonic Mean for Ungrouped Data
3. Harmonic Mean for Grouped Data