This scatter plot shows the relationship between average class size and in-district expenditures per pupil for Massachusetts public schools in 2017, using data from the MA_Public_Schools_2017.csv file. Each circle represents a school, with position determined by those two quantitative variables. The chart is rendered in SVG via D3 v4, using scale functions for the axes and a simple circle-based encoding. The visualization highlights the distribution and potential correlation between school spending and class size, with the grid of points making outliers and clusters visible at a glance.