Civic Impact through Data Visualization: Exercise 1
A bubble chart of San Francisco AirBnB listings shows price per available night against the number of reviews, with each circle’s color encoding room type (entire home, private, or shared). The graphic uses D3.js (version 3.5.8) with `d3.csv`, `d3.scale.linear`, `d3.svg.axis`, and SVG circles, rendering data from Inside AirBnB’s public dataset. The visualization is part of a workshop on civic data impact, emphasizing simple exploratory analysis before mapping.