Table 1 Frequency Density and Probability Density of June 2017 Landslides in Rangamati
Area (m2) | Interval (Area Range) (i) | Number (Landslides) (n) | Percentage (%) (Landslides) (p) | Frequency Density (m−2), \( \boldsymbol{Fd}=\left(\frac{\boldsymbol{n}}{\boldsymbol{i}}\right) \) | Probability Density (m− 2), \( \mathbf{Pd}=\left(\frac{\boldsymbol{Fd}}{\boldsymbol{t}}\right) \) |
|---|---|---|---|---|---|
0–50 | 50 | 54 | 41.5 | 1.1 × 100 | 8.4 × 10−3 |
50–100 | 50 | 27 | 20.8 | 5.4 × 10−1 | 4.1 × 10−3 |
100–200 | 100 | 13 | 9.9 | 1.3 × 10−1 | 9.9 × 10− 4 |
200–300 | 100 | 5 | 3.9 | 5.0 × 10−2 | 3.8 × 10− 4 |
300–400 | 100 | 7 | 5.4 | 7.0 × 10−2 | 5.3 × 10− 4 |
400–500 | 100 | 5 | 3.9 | 5.0 × 10−2 | 3.8 × 10−4 |
500–1000 | 500 | 13 | 9.9 | 2.6 × 10−2 | 2.0 × 10−4 |
1000-2000 | 1000 | 2 | 1.5 | 2.0 × 10−3 | 1.5 × 10−5 |
2000-3000 | 1000 | 3 | 1.7 | 3.0 × 10−3 | 2.3 × 10−5 |
3000-4000 | 1000 | 2 | 1.5 | 2.0 × 10−3 | 1.5 × 10−5 |