21-260: Differential Equations
2010 Fall
	Course Statistics
	Cumulative Average
	Cumulative Statistics						Mean by Recitation			Grade Cutoffs				Grade Distribution
	Min (%)	33.84					Almost	74.93		A cutoff	81.75	=M + 0.76 Sd		A's	29	23%
	Q1 (%)	67.58		Mean	73.43		Bal	70.76		B cutoff	71.75	=M - 0.16 Sd		B's	44	35%
	Q2 (%)	73.82		Sdev	10.92		Piovano	73.21		C cutoff	63.00	=M - 0.96 Sd		C's	36	29%
	Q3 (%)	81.45								D cutoff	51.25	=M - 2.04 Sd		D's	9	7%
	Max (%)	93.14												R's	6	5%
	Homework Average
	Homework Statistics						Mean by Recitation			Grade Cutoffs				Grade Distribution
	Min (%)	29.22					Almost	91.76		A cutoff	85	=M - 0.4 Sd		A's	103	84%
	Q1 (%)	88.39		Mean	89.76		Bal	88.85		B cutoff	75	=M - 1.24 Sd		B's	7	6%
	Q2 (%)	93.11		Sdev	11.95		Piovano	88.45		C cutoff	65	=M - 2.08 Sd		C's	6	5%
	Q3 (%)	96.26								D cutoff	50	=M - 3.33 Sd		D's	2	2%
	Max (%)	100												R's	4	3%
	Exam #1
	Exam Statistics						Mean by Recitation			Grade Cutoffs				Grade Distribution
	Min (%)	30					Almost	74.22		A cutoff	80	=M + 0.55 Sd		A's	37	30%
	Q1 (%)	67		Mean	73.65		Bal	73.34		B cutoff	70	=M - 0.32 Sd		B's	43	35%
	Q2 (%)	74		Sdev	11.44		Piovano	73.32		C cutoff	60	=M - 1.2 Sd		C's	27	22%
	Q3 (%)	82								D cutoff	50	=M - 2.07 Sd		D's	14	11%
	Max (%)	100												R's	3	2%
	Exam #2
	Exam Statistics						Mean by Recitation			Grade Cutoffs				Grade Distribution
	Min (%)	26					Almost	64.07		A cutoff	75	=M + 0.87 Sd		A's	25	20%
	Q1 (%)	52.75		Mean	62.26		Bal	58.71		B cutoff	65	=M + 0.18 Sd		B's	23	19%
	Q2 (%)	63		Sdev	14.5		Piovano	63.23		C cutoff	55	=M - 0.51 Sd		C's	38	31%
	Q3 (%)	72.25								D cutoff	40	=M - 1.54 Sd		D's	29	23%
	Max (%)	94												R's	9	7%
	Exam #3
	Exam Statistics						Mean by Recitation			Grade Cutoffs				Grade Distribution
	Min (%)	38					Almost	78.64		A cutoff	90	=M + 0.96 Sd		A's	18	15%
	Q1 (%)	71		Mean	78.52		Bal	79.00		B cutoff	80	=M + 0.12 Sd		B's	43	35%
	Q2 (%)	80.5		Sdev	11.85		Piovano	78.02		C cutoff	70	=M - 0.72 Sd		C's	31	25%
	Q3 (%)	88								D cutoff	60	=M - 1.57 Sd		D's	20	16%
	Max (%)	100												R's	10	8%
	Final Exam
	Exam Statistics						Mean by Recitation			Grade Cutoffs				Grade Distribution
	Min (%)	50.22					Almost	72.09		A cutoff	80	=M + 0.81 Sd		A's	25	21%
	Q1 (%)	63.33		Mean	71.44		Bal	69.92		B cutoff	70	=M - 0.14 Sd		B's	34	29%
	Q2 (%)	69.78		Sdev	10.44		Piovano	71.92		C cutoff	65	=M - 0.62 Sd		C's	22	18%
	Q3 (%)	79.11								D cutoff	55	=M - 1.58 Sd		D's	35	29%
	Max (%)	95.56												R's	3	3%