marks distribution:

 0- 9	0
10-19	2
20-29	0
30-39	6
40-49	5
50-59	4
60-69	6
70-79	4
80-89	3
90-99	3
100	2

average: 57, median: 60

correlation with courseworks:

number 		average
submitted	marks on test

0-2		41
3		64
4		71