| Value | Action |
|---|
| Method | When to Use? | Formula |
|---|---|---|
| Pearson's 1st | When mode is known | (Mean - Mode) / SD |
| Pearson's 2nd | When median is given | 3(Mean - Median) / SD |
| Moment Coefficient | General use | Σ(x - Mean)^3 / (n * SD^3) |
| Bowley’s Quartile | When quartiles are given | (Q3 + Q1 - 2Q2) / (Q3 - Q1) |