A scatter plot of the Iris dataset shows petal length against sepal width, with each of the three iris varieties colored distinctly via an ordinal color scale and a legend. Built with React and D3 v5, it uses `d3.scaleLinear` for the axes and `d3.scaleOrdinal` for colors, rendering SVG circles with hover tooltips formatted via `d3.format`. The chart reads data from a CSV file loaded with `d3.csv`, with axes and legend drawn as reusable React components.