Imagine you have a dataset that contains different samples of cactuses. Your task is to predict the cactus subfamily. You must find the Gini Index for spines=yes . Round your answer to 3 decimal places.
| Name | Spines | Subfamily |
| Browningia | yes | Cactoideae |
| Pterocereus | yes | Cactoideae |
| Kimnachia | no | Cactoideae |
| Maihuenia poeppigii | no | Cactoideae |
| Opuntia | yes | Opuntioideae |
| Grusonia | yes | Opuntioideae |
| Tunilla | yes | Opuntioideae |
| Maihueniopsis | yes | Opuntioideae |
| Tacinga | yes | Opuntioideae |
| Cumulopuntia | yes | Opuntioideae |
| Pereskiopsis | yes | Opuntioideae |