HSC Extension 2 Mathematics Predictions / Thoughts (1 Viewer)

Xanthi

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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

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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

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


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

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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
 

MrGresh

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Nope! Just something to sort of compile all the guesses going on about how some score is going to align
Oh ok cool, just wondering because the graph looked v fancy :)

I sincerely hope your graph is wrong though because I think i got 80 :/
 

MrGresh

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Interesting: Rui over at AN (which seems to be a dirty word over on this forum haha) reckons high 70's cutoff...

"I think a lot of people underestimate the paper's difficulty. It leaned on the easier end of things, but I didn't really feel it was a blessing or anything.

I feel like worst case E4 cut-off would be around 81. I still think high end 70s should be enough. But who knows; won't find out until release of results day at earliest."

So I guess we will see!
 

idkkdi

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Interesting: Rui over at AN (which seems to be a dirty word over on this forum haha) reckons high 70's cutoff...

"I think a lot of people underestimate the paper's difficulty. It leaned on the easier end of things, but I didn't really feel it was a blessing or anything.

I feel like worst case E4 cut-off would be around 81. I still think high end 70s should be enough. But who knows; won't find out until release of results day at earliest."

So I guess we will see!
some of the questions seem stupid easy. q15 first part in particular stands out with a proof by literally factorising K^3 + 1 into (k+1)(k^2-k+1). imo, lots of questions looked like easy marks.
 

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