This example displays a scatterplot of Midwest counties, plotting the percentage of residents below the poverty line against the percentage with a college education. Each county appears as a colored circle, with hover tooltips revealing the county and state names via d3-tip. The code loads a local CSV file and uses D3 v4 scales, axes, and transitions to animate the circles into place. SVG elements render the chart, and an ordinal color scale distinguishes each data point.