I'm trying to figure out how questions are scored based on exported output from a question that has 0 marks penalty per try, and 12 test cases. Tests 1-11 are worth 1 mark each, and case 12 is worth 2 marks. Tests 1 and 2 are marked 'both' Precheck and Check.
Looking at the scoring I see this for tests passed:
6/13 (1 mark each) scored 0.5, not .4615
7/13 (1 mark each) scored 0.58333, not .5384
8/13 (1 mark each) scored 0.666667 not .6154
So it seems clear that it is being marked out of 12.
What might I have missed?