Chart.js Bubble Scatter

Scatter plots show relationships between two values, but bubble charts add a third dimension — size — making them great for showing complex data at a glance.

In this challenge, you will build a Chart.js Bubble Scatter chart. Each bubble represents a data point with three values: X coordinate, Y coordinate, and radius (size). For example, you could plot advertising spend (X), sales (Y), and market share (bubble size).

Load Chart.js from CDN, create a canvas element, and configure a bubble chart with multiple datasets in different colors.