According to the College Board, the PSAT Reading+Math test scores needed to have a 50% chance of scoring 3 or higher on the AP Computer Science A exam is 1130, and 1280 to score 4 or higher https://cb.collegeboard.org/ap-potential/app/expectancy.html... . PSAT Reading+Math test scores are comparable to SAT scores, and the average SAT score is 1060, even though SAT takers are a self-selected group. The average SAT score in West Virginia, where there are many coal miners, is 974.