Exam scores per class, out of 1003A: 30 values, median 79, quartiles 70.5 – 81, range 64 – 92; 3B: 30 values, median 64.5, quartiles 59 – 67.5, range 45 – 77; 3C: 30 values, median 64, quartiles 55.25 – 78, range 36 – 94; 3D: 30 values, median 71, quartiles 52 – 81.5, range 44 – 95204060801003A: 30 values, median 79, quartiles 70.5 – 81, range 64 – 923A: quartiles 70.5 – 813A: median 793A3B: 30 values, median 64.5, quartiles 59 – 67.5, range 45 – 773B: quartiles 59 – 67.53B: median 64.53B3C: 30 values, median 64, quartiles 55.25 – 78, range 36 – 943C: quartiles 55.25 – 783C: median 643C3D: 30 values, median 71, quartiles 52 – 81.5, range 44 – 953D: quartiles 52 – 81.53D: median 713D