Worldgen datapack question

right now, I have this as the code for a configured feature file:
{
    "replace": true,
    "type": "minecraft:random_selector",
    "config": {
      "default": "ourpack:patch_short_aloe_vera",
      "features": [
        {
          "chance": 0.5,
          "feature": "ourpack:patch_tall_aloe_vera"
        }
      ]
    }
  }

does this mean that there is a 50/50 chance for one of the placed features to be chosen for each try?