extremely vague....Eg. for one Sem you could have a GPA of 2.25
(4 x 6) + (1 x 6) + (2 x 6) + (2 x 6) = 54
(3 x 6) + (2 x 6) + (2 x 6) + (2 x 6) = 54
(1 x 6) + (2 x 6) + (3 x 6) + (3 x 6) = 54
(0 x 6) + (1 x 6) + (4 x 6) + (4 x 6) = 54
and 54/24 = 2.25
and I could keep going for...
The 'thejosiekiller' GUESTIMATE:
A guestimate is pretty much a guess/estimate of what you think your final subject marks will be for this semester.
The word 'guestimate' was made up by thejosiekiller; who will forever be immortalised in this UTS tradition.
So whenever you like, feel free...