HSC Extension 2 Mathematics Predictions / Thoughts (1 Viewer)

[Speed’o’sound Sonic]

What do you guys think an 87 would align to? I have determined that I have lost 11 marks and am accounting for 2 silly errors in addition

An 87 looks like it would align to low 90’s maybe as high as 94 but more likely around 92. Great score, good job!

 

[ktbffh11]

An 87 looks like it would align to low 90’s maybe as high as 94 but more likely around 92. Great score, good job!

surely maths ext 2 won't align this badly! ext 1 normally does better than that

 

[clbaker]

I take my naps at 4pm. How do I not fall asleep in the exam??

So the timetable has only been out for most of the year... how have you not changed your habits?

 

[Speed’o’sound Sonic]

surely maths ext 2 won't align this badly! ext 1 normally does better than that

I thought This year’s exam was a lot easier than the usual, and from what I’m hearing on here a lot of others think the same, so marks might scale a bit worse than expected. Also marks scale worse the closer you get to the top. But I’m not an expect just someone trying to help out
Cheers

 

[Xanthi]

Here is a potential aligning chart for this year, since there seems to quite some interest.

Each line is self-consistent, that is, if one point is correct, the others should be as well.

The central line represents a reasonable estimate for this year, but it of course could be wrong by a little or a lot.

The blue shaded area represents relatively "higher" aligning, while the green shaded represents relatively "lower" aligning which could be considered like an uncertainty zone.



Edits: These are just estimates by considering past aligning, specifically 2017 where the cut-off for band 6 was 76. The (potentially) more important thing here is that the lines are self-consistent as explained above, so feel free to choose a band 6 cutoff as you think is realistic and extrapolate to other points.

 

[Speed’o’sound Sonic]

Here is a potential aligning chart for this year, since there seems to quite some interest.

Each line is self-consistent, that is, if one point is correct, the others should be as well.

The central line represents a reasonable estimate for this year, but it of course could be wrong by a little or a lot.

The blue shaded area represents relatively "higher" aligning, while the green shaded represents relatively "lower" aligning which could be considered like an uncertainty zone.

View attachment 29289

Legend

 

[MrGresh]

Here is a potential aligning chart for this year, since there seems to quite some interest.

Each line is self-consistent, that is, if one point is correct, the others should be as well.

The central line represents a reasonable estimate for this year, but it of course could be wrong by a little or a lot.

The blue shaded area represents relatively "higher" aligning, while the green shaded represents relatively "lower" aligning which could be considered like an uncertainty zone.

View attachment 29289

Edits: These are just estimates by considering past aligning, specifically 2017 where the cut-off for band 6 was 76. The (potentially) more important thing here is that the lines are self-consistent as explained above, so feel free to choose a band 6 cutoff as you think is realistic and extrapolate to other points.

May i ask how this was made?

 

[Xanthi]

May i ask how this was made?

As in the graphics of the graph itself or the aligning data?

 

[shashysha]

Here is a potential aligning chart for this year, since there seems to quite some interest.

Each line is self-consistent, that is, if one point is correct, the others should be as well.

The central line represents a reasonable estimate for this year, but it of course could be wrong by a little or a lot.

The blue shaded area represents relatively "higher" aligning, while the green shaded represents relatively "lower" aligning which could be considered like an uncertainty zone.

View attachment 29289

Edits: These are just estimates by considering past aligning, specifically 2017 where the cut-off for band 6 was 76. The (potentially) more important thing here is that the lines are self-consistent as explained above, so feel free to choose a band 6 cutoff as you think is realistic and extrapolate to other points.

potential e4 cutoff of 84 in 4u never thought id see the day

 

[Xanthi]

potential e4 cutoff of 84 in 4u never thought id see the day

The central line actually corresponds to 83

But wow it's interesting to see how the cutoff rose from about 56 in 2008 to about 76 in 2017 - a 20 mark rise!

A 50s cutoff would have been incredible

 

[MrGresh]

As in the graphics of the graph itself or the aligning data?

Aligning data, since we have no idea how the cohort did

 

[Speed’o’sound Sonic]

Aligning data, since we have no idea how the cohort did

The edit says it’s the trend from previous years

 

[Xanthi]

The edit says it’s the trend from previous years

Sorry I meant it's actually the trend predicted for this year based on what the difficulty of 2017 was and how the aligning was for that.

 

[Speed’o’sound Sonic]

Sorry I meant it's actually the trend predicted for this year based on what the difficulty of 2017 was and how the aligning was for that.

Alright fair enough

 

[MrGresh]

The edit says it’s the trend from previous years

Idk man, trend from the last couple of years is max 75 for an e4 cutoff....

Mathematics Extension 2 – HSC Raw Marks Database

rawmarks.info

I understand this year's will be higher but unless there is some magic behind this, then it is a (slightly more) educated guess.

 

[Xanthi]

Aligning data, since we have no idea how the cohort did

Nesa uses a linear model, so you can figure it out that way once you set a b6 cutoff with appropriate rounding.

The b6 cutoffs are predictions by comparing previous years performance/difficulty with the general perception of this year's- which is difficult to predict hence the huge uncertainty range.

 

[MrGresh]

Nesa uses a linear model, so you can figure it out that way once you set a b6 cutoff with appropriate rounding.

The b6 cutoffs are predictions by comparing previous years performance/difficulty with the general perception of this year's- which is difficult to predict hence the huge uncertainty range.

Ok fair enough. Ik I sound like a douche rn but are u an expert in 4u exams? like a tutor or teacher or something?

 

[Xanthi]

Idk man, trend from the last couple of years is max 75 for an e4 cutoff....

Mathematics Extension 2 – HSC Raw Marks Database

rawmarks.info

I understand this year's will be higher but unless there is some magic behind this, then it is a (slightly more) educated guess.

Yep, all the b6 cutoffs themselves are a educated guess but once you set that the rest is consistent- so at least that part isn't a guess.

 

[Xanthi]

Ok fair enough. Ik I sound like a douche rn but are u an expert in 4u exams? like a tutor or teacher or something?

Nope! Just something to sort of compile all the guesses going on about how some score is going to align

 

[idkkdi]

Ok fair enough. Ik I sound like a douche rn but are u an expert in 4u exams? like a tutor or teacher or something?

"HSC: 2020" on his profile.