The results are in for the second exam, and here are some brief summary statistics:
Total Number of Exams: 19
Mean score: 75.79
Modes: 74 (3 exams), 76 (3 exams) and 88 (3 exams)
Range: 54 to 88 (the full description is below)
CURVE: There is no curve for this test.
NOTE(!): I regressed the effect of attendance on overall grade for the exam. After controlling for several other factors, missing one class decreased a test score by over 3 points, on average. Attendance matters!
. tab test2
test2 | Freq. Percent Cum.
------------+-----------------------------------
54 | 1 5.26 5.26
66 | 1 5.26 10.53
68 | 1 5.26 15.79
70 | 2 10.53 26.32
72 | 1 5.26 31.58
74 | 3 15.79 47.37
76 | 3 15.79 63.16
78 | 1 5.26 68.42
82 | 2 10.53 78.95
84 | 1 5.26 84.21
88 | 3 15.79 100.00
------------+-----------------------------------
Total | 19 100.00
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