Further Math Exam 1: Answers + Discussion!

[Dan1995]

Can someone please explain to me why question 11 core is E? I thought to find the deseasonalised value you have to divide the actual figure by the seasonal index?

That is correct, did you use the correct SI for May, or did you use the one you found in the question above, for December?

[soysauce]

Sitting on 31/40
What study score am I looking at if I get 95+ on exam 2?

[vcestudent123]

Sorry but I don't think it's that unfair, anyone who had done the previous VCAA exams as revision and checked the answers they werent sure about or got wrong would've known how to answer that question. Hopefully your teacher recommended you do that as preparation for the exam?

Of course, all teachers recommend that.
I did the revision myself and that's how I got the right answer for that question.

My point is that only 10% of the whole state had the right answer that year, why use it again?

[Dan1995]

Of course, all teachers recommend that.
I did the revision myself and that's how I got the right answer for that question.

My point is that only 10% of the whole state had the right answer that year, why use it again?

They need questions like that occasionally to differentiate between students? And given that it was on a recent exam, hopefully most students were shown how to do that question in class, as it was done so poorly.

[LiquidPaperz]

bloody misread core q13 and graphs q7 so pissed!!!!!!!

[vcestudent123]

They need questions like that occasionally to differentiate between students? And given that it was on a recent exam, hopefully most students were shown how to do that question in class, as it was done so poorly.

I suppose you are right about that.
There will always be a question like that every year I guess.

[nugz]

That is correct, did you use the correct SI for May, or did you use the one you found in the question above, for December?

Oh wow. I feel so stupid. I used the March SI And I even double checked everything!
I guess that's what the pressure of an exam does to me 

[clidedescope]

Of course, all teachers recommend that.
I did the revision myself and that's how I got the right answer for that question.

My point is that only 10% of the whole state had the right answer that year, why use it again?

Given that not many students got it correct in the previous year, it actually means they're more likely to use it again. It's because they need to make sure it's being taught. Most teachers check the examiners report and note the tricky areas.

[Addzkebabs]

Took me a bit but i thought it was simple once you figure out what to do, you know the median and Q3, calculate the upper fence and done

Hey guys,

Sorry to ask again and bust everyones balls but for question 6 in core, how did everyone know Q3? I still believe it was E... Lmao unless I'm completely retarded 

Cheers

[soysauce]

Hey guys,

Sorry to ask again and bust everyones balls but for question 6 in core, how did everyone know Q3? I still believe it was E... Lmao unless I'm completely retarded 

Cheers

+1

[Dan1995]

I suppose you are right about that.
There will always be a question like that every year I guess.

At least it was in core, as it is the only compulsory module, I would be expecting a much higher percentage of correct answers for that question this year, which would mean that students are being taught to the exams, which is a good thing. The range of questions that can be asked is also somewhat limited for core, so most of the questions are just modified versions of older questions, just some of them probably date back before 2006.

[Monodon monoceros]

Networks question 7, are you sure the answer is E? I spoke to my teacher after and they said it was C....

[phlman]

Networks questions 9? is it really C?

[nugz]

I thought networks question 7 was D. I can't seem to redraw the first graph as planar. Can someone post a picture of how they did the first graph as planar?

[Dan1995]

Hey guys,

Sorry to ask again and bust everyones balls but for question 6 in core, how did everyone know Q3? I still believe it was E... Lmao unless I'm completely retarded 

Cheers

q3 is the 38th point, which was 50. So when you do the calculation for the upper fence (max value before it becomes an outlier) you do 50+1.5x(50-30)=80, therefore anything above 80 is an outlier, which was only two values.