=+44. Progress rate. Grade Point Average (GPA) and Progress Rate (PR) are two variables of crucial importance to students and schools. While each class’s GPA data is typically bell shaped, the PR data is quite different. Here is a histogram and summary statistics from a large class of business students in a European university, where PR is determined as the share of the 60 yearly European Credit Transfer and Accumulation System (ECTS) points achieved by any student.

–5 0 5 10 15 20 25 30 35 40 45 50 55 60 Mean 40.596317 Std Dev 22.290204 Std Err Mean 0.6849613 Upper 95% Mean 41.940354 Lower 95% Mean 39.25228 N 1059