Note that the final exam was only 180 points max.  It was rescaled appropriately.
The "ex sc" (exam score) column was obtained by taking the larger of 2 numbers:
i) 0.3 * (exam 1) + 0.3 * (exam 2) + 0.4 * (final exam percentage)
ii) 0.125 * (min of 2 exams) + 0.375 * (max of 2 exams) + 0.5 * (final ex. Percentage)
Total score counted homework 20% and exams 80%.
hmk		e1		e2		fin		ex sc		tot sc
[20]		[100]		[100]		[180]		[100]		[100]
19.54		98		91		165		93.96		94.7		a
16.31		80		86		164		87.81		86.6		a
18.77		84		81		155		84.68		86.5		a
19.08		81		83		150		82.92		85.4		a
15.38		67		98		149		86.51		84.6		a
19.38		79		78		145		79.65		83.1		a
18.62		83		62		140		77.76		80.8		a
18.92		78		81		111		72.37		76.8		b
14.15		83		74		135		77.88		76.5		b
17.08		63		77		131		73.14		75.6		b
19.85		84		74		97		68.96		75		b
18.62		71		75		114		69.13		73.9		b
17.08		74		59		122		69.01		72.3		b
19.23		57		70		118		66.15		72.2		b
17.08		57		72		123		68.29		71.7		b
16.62		69		69		123		68.73		71.6		b
19.23		79		64		98		64.85		71.1		b
16.92		77		65		105		66.17		69.9		b
12.62		70		79		114		70.04		68.7		b
18.15		63		66		96		60.03		66.2		b
15.54		74		53		103		62.99		65.9		b
18		52		57		112		58.99		65.2		b
18.15		57		44		114		58.54		65		b
18.77		40		63		102		56.96		64.3		b
17.54		60		56		103		58.11		64		b
16.92		56		67		94		58.24		63.5		b
9.85		37		70		121		64.49		61.4		c
15.85		51		77		77		56.64		61.2		c
16.92		63		61		73		53.42		59.7		c
19.08		0		68		85		49.11		58.4		c
14		56		53		93		53.46		56.8		c
19.69		41		60		64		45.4		56		c
16.15		55		55		68		48.11		54.6		c
10.77		25		66		95		54.26		54.2		c
10.46		54		51		91		51.9		52		c
14.77		45		57		70		46.44		51.9		c
11.69		54		52		64		46.02		48.5		c
11.38		49		55		64		45.42		47.7		c
11.69		32		38		58		34.36		39.2		d
12.46		30		42		46		32.28		38.3		d
0		43		51		76		45.61		36.5		d
5.69		15		54		51		36.29		34.7		d