The student averages are 64.4 and 61.5 respectively, while Opus 3 scores are 72 and 63.
Probably fewer than 100,000 students take part in AMC 12 out of possibly 3-4 million grade-12 students. Assume just half of the top US students participate, the average score of AMC would represent the top 2-4% of US high school students.
https://www-cdn.anthropic.com/de8ba9b01c9ab7cbabf5c33b80b7bb...