This dotplot displays the Iris dataset, showing sepal length measurements across three species. Each species is positioned along the x-axis, with individual data points jittered horizontally using `randomUniform` to reduce overplotting while their vertical positions reflect sepal length via a `scaleLinear` mapping. The visualization is built as a reusable D3 module using the getter-setter pattern, rendering SVG circles with axes generated by `axisLeft` and `axisBottom`. Data is loaded as CSV and parsed with d3.csv.