So I'm pretty sure I may have failed my last exam due to difficulty, poor effort, silly mistakes etc. etc.
Anyways, upon calculating possible exam marks I may achieve, I came to the conclusion I might just pass, or just fail.
Is it possible the chief examiner has the ability to take a look at students who achieved say, a 48 and bump them up to 50 based upon their discretion? (e.g. based off other factors such as tutorial attendance, quality of errors on exam etc.) or is this a rare, or non occurring, possibility?
To give you something positive to look at it, it has been "known" to occur (word of mouth - I have not been told by anyone of authority that they have bumped someone up or that it occurs, but the general consensus among students seems to be it does sometimes occur). However, it certainly doesn't happen in all cases and would be dependent on the situation (e.g. high in-semester assessment marks but just failed exam) and the chief examiner/unit coordinator or whoever it is that is in charge of these things.
Anyway, best to just put it behind you for the time being and enjoy your holidays, then address the issue when results come out, maybe you'll be pleasantly surprised. Best of luck!