sorry, after the further exam the mark has changed so i was hoping if someone would be able to check this for me:
GA 1: 91/100
GA 2: 76/80
GA 3: 116/120
rank 1
am i looking at a 45? (also will i pull my school's scores down because i'm worried i will)
Yeah probably about a 45, maybe 44 depending on how your sacs scale.
The whole pulling down your cohorts score thing isn't as big of a deal as its made out to be. It mostly occurs when you have a small cohort or one that is scoring very unevenly. One person can't really do much damage. Sacs are scaled according to how your cohort goes on exams, so if a lot of people at the top of your cohort bomb the exam, sacs won't scale how they otherwise would. Don't worry about it though.
What STUDY SCORE am i looking at for Further?
SACS: 92 (Upper end of a strong cohort)
EXAM 1: 39/40
EXAM 2: 56-57/60 
probably a 45/46 or thereabouts depending on how your sacs scale.
This might be a silly question but how do we estimate our study scores using last years grade distributions?
I can only figure out my grades not a numerical number?
The average study score is 30 with a standard deviation of 7. On the grade distribution it will have the mean and standard deviation for each GA. You can use this to approximately work it out (it's more precise for some scores than other). Say for example you have a GA where the mean is 36 and the standard deviation is 9. You got a score of 43 so you know that you're almost one standard deviation above average, ie. just below a 37 study score.
You do this for each GA, and then use the weighting of each GA to work out approximately what the average of them all is, and that gives you a rough idea of what to expect. This is more precise for some people than for others - eg. if you're right on a standard deviation then it's more accurate (for that year at least) than approximating if your score is a bit above or below one.
This doesn't work for all subjects, it mostly works up to about 44, anything above that requires using grade cuttoffs, and it also only works up to 37 for further because of the way the mark distribution goes in that subject.
For further the other way you can work it out is that you need around a low A+ average to get a 40. Therefore scores that approximately put you on the A/A+ border are likely to be around a 40, scores slightly higher than that are low 40's, and scores in the upper A+ area are high 40s.
Edit: I'd forgotten, there's another way to work it out too.
% of students to each study score
2% of students will get a score on or above 45
9% of students will get a score on or above 40
26% of students will get a score on or above 35
53% of students will get a score on or above 30
78% of students will get a score on or above 25
93% of students will get a score on or above 20.
You can use this in combination with the % of students who get each grade to work out approximately which bracket you'll be in. It's not very precise either though.
You could try using multiple methods if you want, you'll probably get slightly different results.
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