Study score I would have gotten

[happyhappyland]

I just did 2008 Exam under timed conditions and got

27/40 = 54/80 for exam one equates to a B+
63/80 = 126/160 for exam two that is around a mid A

My sacs would been a mid A aswell. What study score would I have gotten?

[RainerWolfram]

35 - 36

[_avO]

27/40 would have just scraped B+ and 63/80 is the highest A

So according to the stats ('08) it would equate to approximately:
EXAM 1 = 11 x 0.51 (you're percentile) = 5.61/11
EXAM 2 = 22 x 0.885 = 19.47
SAC = 17 x 0.73 = 12.41
Total = 5.61 + 19.47 + 12.41
        = 37.49 SS
that would be my estimation but it could vary from 35~38

[happyhappyland]

27/40 would have just scraped B+ and 63/80 is the highest A

So according to the stats ('08) it would equate to approximately:
EXAM 1 = 11 x 0.51 (you're percentile) = 5.61/11
EXAM 2 = 22 x 0.885 = 19.47
SAC = 17 x 0.73 = 12.41
Total = 5.61 + 19.47 + 12.41
        = 37.49 SS
that would be my estimation but it could vary from 35~38

Thats some pro stuff there.. did you work out my percentile using normalcdf with the mean and sd on the statistics page?

[_avO]

Nah no methodsy stuff xD just looked at the table they give on the stats page and added the total % of people who would have done better then 27/40 and multiplied it with 22%(GA2) x 50(ss). Did similar thing to the other 2 estimates

[f.sharp]

losing 13 marks on a methods exam 1 is unforgivable

[f.sharp]

decided to give this exam a go

exam 1- 40/40
exam 2- 77/80

given im ranked sumwhere in the top 10 or 15ish of a really strong cohort of 150 or so kids, wat kind of ss would i get?

[letsride]

47+

[taiga]

decided to give this exam a go

exam 1- 40/40
exam 2- 77/80

given im ranked sumwhere in the top 10 or 15ish of a really strong cohort of 150 or so kids, wat kind of ss would i get?

37

[Hutchoo]

decided to give this exam a go

exam 1- 40/40
exam 2- 77/80

given im ranked sumwhere in the top 10 or 15ish of a really strong cohort of 150 or so kids, wat kind of ss would i get?

37

45+

37? Lolwut

[TrueTears]

decided to give this exam a go

exam 1- 40/40
exam 2- 77/80

given im ranked sumwhere in the top 10 or 15ish of a really strong cohort of 150 or so kids, wat kind of ss would i get?

According to 2008, you would get 50. (I was told dcc lost 3 marks and got 50, but I know for sure losing 2 marks yielded a 49 my friend got 49)

According to 2009, you would get 48. (I lost 3 marks and got 48, my friend lost 2 and got 49)

[f.sharp]

sweet, thanks

[Mao]

@avo & happyhappyland

Have a look here: http://vcenotes.com/forum/index.php/topic,6688.0.html
You might be interested in the maths going on there.

[happyhappyland]

@avo & happyhappyland

Have a look here: http://vcenotes.com/forum/index.php/topic,6688.0.html
You might be interested in the maths going on there.

I never seemed to have used that excel document properly, but for me Ive worked out somethign with probability Ive learnt from methods...

Say for an easier subject like Chemistry
Get a total out of 50 so
33% of 50 for each thus each GA is worth ~16.5 marks.

You enter ur predicted score into your calc using normalCDF with say 0 to [given score] with the given SD and Mean. X that number by 16.5 and ull get something over 50. But since 40/50 isnt top 10% but top 8% I used basic chemistry-like ratios... Heres an example.

Chemistry 2009 Data
Exam 1: 114/146 GA1
Thus
Lower: 0
Upper: 114
SD: 30.1
Mean: 73.8
NormalCDF= 0.902044856


GA2
190/200
Lower: 0
Higher: 190
SD:31.1
Mean: 151.9
NormalCDF: 0.8897270136


GA2:
140/152
Lower: 0
Upper: 140
SD:33.3
Mean: 88.8
NormalCDF = 0.9340887544


add up all the percentages and average it 0.908620208

then if 40ss=0.92 (top 8%)
"x"ss = 0.908620208

39.5 ss. But you see its not exactly THAT accurate. . Only if the Mean and SD is provided for the actual STUDY SCORE itself. In which in MAO's post you stated

Mean=30 SD = 7

so if i did invNormCDF "L" (left) and the prob was .9086 with SD=7 Mean=30

I get 39.3  But remember the stats I used was
GA1: Lowest A+
GA2: Mid A+ (but mid A+ for sacs is around top 12%)
GA3 : Low-mid A+

So even with 3A+ you get around a 39-40 if one of your A+ is the lowest.

[Blakhitman]

What SS would this equate to? (2006)

Exam1-39
Exam2-78