85 students handed in the midterm. the midterm as a whole: mean 51.0765 stdev 12.0961 Per-problem statistis: Num 1: mean 0.976471 stdev 1.157853 Num 2: mean 9.964706 stdev 4.268757 Num 3: mean 2.800000 stdev 1.263050 Num 4: mean 4.088235 stdev 1.161076 Num 5: mean 4.147059 stdev 2.631063 Num 6: mean 2.741176 stdev 2.275977 Num 7: mean 3.058824 stdev 1.249498 Num 8: mean 4.782353 stdev 2.532665 Num 9: mean 1.888235 stdev 1.600324 Num 10: mean 3.970588 stdev 1.186574 Num 11: mean 2.094118 stdev 1.123268 Num 12: mean 2.458824 stdev 1.491568 Num 13: mean 3.776471 stdev 2.343333 Num 14: mean 3.600000 stdev 2.903142 Num 15: mean 0.729412 stdev 1.618919 Per-problem statistics, omitting zero grades: Num 1: mean 2.075000 stdev 0.754569 Num 2: mean 9.964706 stdev 4.268757 Num 3: mean 3.090909 stdev 0.928367 Num 4: mean 4.186747 stdev 0.983940 Num 5: mean 4.700000 stdev 2.290560 Num 6: mean 3.698413 stdev 1.857075 Num 7: mean 3.250000 stdev 1.018577 Num 8: mean 5.645833 stdev 1.642401 Num 9: mean 2.815789 stdev 1.098770 Num 10: mean 3.970588 stdev 1.186574 Num 11: mean 2.472222 stdev 0.744838 Num 12: mean 2.985714 stdev 1.062246 Num 13: mean 4.115385 stdev 2.142254 Num 14: mean 5.186441 stdev 1.978482 Num 15: mean 2.583333 stdev 2.119683
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