Gini (Type 1 classification)

Gini (Type 2 classification)

Low (Class 1)

$\text{Gini}<0.2$

$\text{Gini}<0.56$

Medium (Class 2)

$0.2\le \text{Gini}<0.28$

$0.56\le \text{Gini}<0.68$

High (Class 3)

$0.28\le \text{Gini}\le 1$

$0.68\le \text{Gini}\le 1$