How the AP Biology composite works
Your raw results in each section are converted to a percentage of the points available, then averaged because multiple choice and free response are each worth 50%. The 60 multiple choice questions and the roughly 34 free response points are weighted equally, and the combined composite percentage maps to a predicted 1-5 score using common estimated thresholds.
Using the estimate wisely
Because the long free response questions vary in maximum points and the curve is set each year, treat a borderline result as uncertain. The breakdown shows whether multiple choice or free response is limiting your score, which helps you target your review.