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  1. Trebla

    Maths in Actuarial Studies

    Actuarial studies is very data and application-centric and not really the same as solving pure maths problems like you would in Ext2 Maths. Think probability, statistics and financial maths on steroids. It’s about coming up with models to estimate or measure something that is uncertain. If that...
  2. Trebla

    Should I study stuff outside of syllabus for Mathematics Extension 2?

    Nice to have with luxury of time, but this should never be at the expense of learning the actual syllabus content. Anyway, all HSC questions should be doable using syllabus content only (what makes them hard is knowing how to apply syllabus content in unfamiliar contexts), and anything beyond is...
  3. Trebla

    What was the lowest atar in James Ruse?

    There’s reason why median ATARs are reported by schools rather than mean ATARs…
  4. Trebla

    inv functions question from 2004 3U HSC paper

    FYI the 2022 Maths Ext2 HSC had a question that was almost identical to one in the 2005 Maths Ext2 HSC. Just sayin…
  5. Trebla

    UAC sent rejection letters to students in error

    Woops https://www.smh.com.au/national/nsw/uni-admissions-body-sends-rejection-letters-to-13-000-students-by-mistake-20221223-p5c8k0.html …another systems blunder
  6. Trebla

    question about inequality proofs

    You will usually be expected to derive the AM-GM results from scratch. Either way, the HSC questions will make that very clear. The only real mention of AM-GM is as an example of an inequality in the syllabus and even then it is framed as a derivation (with the word "establish") for two...
  7. Trebla

    BoS meet up

    It was great to meet the people behind the usernames! If this is something people are keen on, then happy to organise another event next year. :)
  8. Trebla

    ATAR results/reveal thread

    Looks like Ruse didn’t have a great year from a band 6 percentage basis. They typically hit 70% or above but are at 67.7% this year (followed by NSB at 62.8%). Very surprised Sydney Boys and Sydney Girls are outside the top 10.
  9. Trebla

    First in course?

    First in course list will be posted in this link: https://educationstandards.nsw.edu.au/wps/portal/nesa/about/events/merit-lists/first-in-course/2022 but if you can’t wait then see https://www.smh.com.au/national/nsw/the-state-s-top-hsc-students-in-every-course-revealed-20221208-p5c4wn.html
  10. Trebla

    HSC Results thread

    The UAC calculator uses actual historical scaling data which is something the private company run ATAR calculators don't have access to. However, that still doesn't guarantee it is 100% accurate, because the exact scaling differs from year to year.
  11. Trebla

    BoS meet up

    Bump!
  12. Trebla

    BoS meet up

    Location is being decided within the private convo discussion, for those who are serious about attending
  13. Trebla

    BoS meet up

    Bump! If you wish to attend the BoS meet up on the 18th, please post here and/or send me a PM
  14. Trebla

    BoS meet up

    Thanks to those who voted. Looks like the most preferred date is Sunday 18th December! (also after HSC/ATAR results are out) Now for the next steps. For those who are serious about coming on the 18th of December (most likely during the day), please post here and/or send me a PM to communicate...
  15. Trebla

    BoS meet up

    Bump
  16. Trebla

    New ATAR calculator just dropped

    Why hello it’s the OG lurking 😲
  17. Trebla

    New ATAR calculator just dropped

    lol well no need for ATAR calculators from private companies anymore, this one is using the official historical scaling data…
  18. Trebla

    BoS meet up

    It will be within the Sydney metro area. Will do a location that is reasonably accessible by public transport. Still need to give some thought about exact place but for now just need to narrow down particular day(s) as the first step.
  19. Trebla

    BoS meet up

    Sorry, fixed it up now
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