This scatter plot visualizes the trade-off between volatility and return for a portfolio sample, with each circle representing a data point from a CSV file. The chart uses D3 v5’s `scaleLinear` and `axisBottom`/`axisLeft` to position points and render axes, while SVG circles with steelblue fill and partial opacity show the distribution. Axis labels and a title clarify the metrics, and gridlines created via `tickSize` aid in reading values. The rendering relies on SVG appended to an HTML container.