This bubble chart displays correlations among age, height, and weight for eighteen named individuals, with each circle’s position encoding age and height while its size and color represent weight. The D3 v7 code loads CSV data and renders an SVG with linear scales, a color ordinal scale, and hover tooltips. A legend and animated transitions highlight the mapping, using d3.axisBottom, d3.axisLeft, and d3.scaleLinear for visual encoding.