This scatter plot visualizes the Iris dataset, showing sepal length on the x-axis and petal length on the y-axis. Each flower species—setosa, versicolor, and virginica—is encoded with a distinct SVG symbol shape: circles, triangles, and diamonds. D3’s scaleOrdinal and symbol API handle the shape mapping, while d3.csv loads the data. A custom shape legend clarifies the species-to-symbol correspondence. Axes and labels are generated using d3.axisBottom and d3.axisLeft.