last 3 digits of student #	hw1	hw2	hw3	hw4	midterm
126	23	22	23	20	85
550	21	19	15	13	33
946	24	20	21	22	72
294	4	0	18	2	46
656	14	18	12	22	85
709	25	22	24
149	19	24	24	19	65
442	13	7	0	0	31
492	24	22	24	23	83
780	0	0	0	0	60
734	17	20	24	15	59
758	8	0	0	0	66
992	9	14	22		49
343	22	22	21	22	77
669	22	23	22	18	67
313	11	17	20	7	19
196	20	13	12	0	46
131	19	18	17	15	41
786	0	0	0	0	67
233	18	10	20	3	39
246	25	23	25	24	45
822	18	13	18	20	63
509	14	13	20	18	85
486	22
85	22	18	18	19	74
271	16	0	23	0	48
379	11	19	19	11	69
259	24	23	24	23	81
995	6	20	19	13	36
211	17	23	17	20	76
avg. (over nonzero entries)	17.42857	18.4583	20.08	16.619	59.54
Histogram for exams	midterm
10s	1
20s	0
30s	4
40s	6
50s	1
60s	7
70s	4
80s	5
90s	0