This scatter plot of the Pima Indians Diabetes Dataset visualizes the relationship between plasma glucose concentration and body mass index (BMI). Each point represents a patient, with x/y positions mapped through `d3.scaleLinear` scales for BMI and glucose, respectively. The marker color uses a sequential yellow-to-red scale through `d3.scaleSequential` to encode patient age, while the symbol shape distinguishes diabetes outcome—crosses for positive diagnoses, circles for negative—via `d3.symbolCross` and `d3.symbolCircle`. Data is loaded from CSV and filtered to exclude zero values for BMI and glucose.