Further Maths (Exam 2): Discussion, Questions & Potential Solutions

[PhoenixxFire]

What did people get for the last networks question?
I got 116km but I know a few people who have said 108km.

I got 108

Anyone got k=30 for matrices last q?
Hope i got it right 

Yeah it was 30.
20, 10, -60. Matrix had to add up to 0 because no new roads added so k=30

[sm123456]

Great effort on Exam 2!
I'd estimate 46-47, however.

Thank you! How’d you find the exam?  It seemed to be a mush of the exam 2s in 2015,16 and 17 with very similar matrices and finance questions

[Lear]

Thank you! How’d you find the exam?  It seemed to be a mush of the exam 2s in 2015,16 and 17 with very similar matrices and finance questions

I personally was surprised that the exam tended to focus mainly on certain areas while completely ignoring other areas. For example, I was expecting a focus on dominance and one/two step matrices as these can easily be used to separate the high end students. Even in Graphs and relations it was pretty basic. I thought before that maybe this exam was harder than last year's but now reflecting on it I dare say it was easier.

[sm123456]

I personally was surprised that the exam tended to focus mainly on certain areas while completely ignoring other areas. For example, I was expecting a focus on dominance and one/two step matrices as these can easily be used to separate the high end students. Even in Graphs and relations it was pretty basic. I thought before that maybe this exam was harder than last year's but now reflecting on it I dare say it was easier.

I did matrices and networks and I do know what you mean, both exams didn’t fully cover key points in the study guide. I thought since in exam 1 there was no crashing in networks it would appear in exam 2, but to my surprise it was missing a lot of questions that definitely could have set apart students’ results. But considering everyone’s reaction to the exam, I do believe certain questions that required you to use the transition matrix and calculate interest will have an impact on the results.

[Lear]

I can’t completely remember but wasn’t mean smoothing, median smoothing and seasonal smoothing absent from core too? Odd.

[GuZz]

I can’t completely remember but wasn’t mean smoothing, median smoothing and seasonal smoothing absent from core too? Odd.

There was the x-axis and y-axis finding the median, but no smoothing.

[sm123456]

Yes! Time series and smoothing were completely missing, only exam 1 had a question on seasonal indices other than that there was nothing.

Also not many transformation questions which I thought would be a big part in core. This year was more heavily focused on the modules I believe. At least for matrices and networks

[GuZz]

STUDY SCORE PREDICTIONS?
Could someone predict my study score?
Sacs 88%
Exam one: 40/40
Exam two: 58/60

43-44+ going by the 2017 stat distribution. Could be slightly higher if your cohort did well (SACs scale up) and the state did poorer (grade brackets reduced)

[omaryuusuf11]

what would my study score be?
SAC average - 85% (strong cohort, probably ranked 9-12)
Exam 1- 36/40
Exam 2- 55/60
any chance at getting a 40 raw?

[batoorbak]

Hi guys im rank 3 w and average of 90% in sacs, i got 40/40 in first exam and 59/60 in second (stupidest mistake aswell) is it possible for me to get 50

[GuZz]

what would my study score be?
SAC average - 85% (strong cohort, probably ranked 9-12)
Exam 1- 36/40
Exam 2- 55/60
any chance at getting a 40 raw?

Likely in the realm of 37-39. If stat distribution goes your way in exam 1 and your cohort did well, might sneak a 40.

[GuZz]

Hi guys im rank 3 w and average of 90% in sacs, i got 40/40 in first exam and 59/60 in second (stupidest mistake aswell) is it possible for me to get 50

Likely looking at 43-44+ due to the 33% SAC contribution (last year 90% was a high A). Losing the mark on exam 2 will almost certainly take anyone (even those who got 100% on SACs) out of contention if the top students did well.

[Lear]

Yes! Time series and smoothing were completely missing, only exam 1 had a question on seasonal indices other than that there was nothing.

Also not many transformation questions which I thought would be a big part in core. This year was more heavily focused on the modules I believe. At least for matrices and networks

Right! I forgot about transformations. There also wasn't anything to do with z scores and the 68-95-99.7 rule.
 I swear they've been in pretty much every exam past few years. Very peculiar that VCAA changed the format completely. Even the typical first 'here's a dot plot, find median and Q3' type questions were no where to be found. Big shift. Wonder if this is a trend that will continue for next few years!

[yash.k]

Are the answers for the exam up?

[Guest1256]

Do we have any idea as to how the question regarding Melbourne vs Sydney will be marked and whether gradients + staying values will be enough for two marks?