**The most important metric is `petal_length`.** The dataset has no revenue-style measure, so I judged importance by how well a measure separates the three species, which is the decision this data serves. **Why petal length** - The species averages are far apart: setosa 1.46, versicolor 4.26, virginica 5.55 (`iris_by_species`). - Setosa (1.0–1.9) does not overlap versicolor at all (3.0–5.1). - Versicolor and virginica overlap only between 4.5 and 5.1. - Sepal width overlaps heavily: setosa 2.3–4.4, versicolor 2.0–3.4, virginica 2.2–3.8. Sepal length overlaps too, since versicolor and virginica both have a minimum of 4.9. - Petal width also separates the species well (averages 0.25, 1.33, 2.03). I ranked petal length first because its species averages are the most widely spread. I did not run a formal feature-importance test. **Highest and lowest records by `petal_length`** (from the raw-table extremes query, shown above) - **Highest:** a virginica specimen with petal length 6.9, petal width 2.3, sepal length 7.7 and sepal width 2.6. - **Lowest:** a setosa specimen with petal length 1.0, petal width 0.2, sepal length 4.6 and sepal width 3.6. The two extremes come from different species, so the largest and smallest petals sit at opposite ends of the species ordering. I only pulled one row for each end. If other specimens tie at 6.9 or 1.0, they are not shown.