ATAR Notes: Forum
Archived Discussion => VCE Exam Discussion 2020 => Exam Discussion => Victoria => Maths Exams => Topic started by: Hello132 on November 18, 2020, 05:35:34 pm
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What was that??
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Was anyone actually able to finish it? .o.
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What was the total area you guys got for the part of the river that was a no swim zone?
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What was the total area you guys got for the part of the river that was a no swim zone?
837 m2 ?
I did it in a rush so not too sure lol
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I got 400 something, maybe 426, not entirely sure
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837 m2 ?
I did it in a rush so not too sure lol
Yea I got something like that
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MC tho - tripped so bad had to guess like 1/4 of them lol
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MC tho - tripped so bad had to guess like 1/4 of them lol
SAME
Q19 made absolutely no sense TvT
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837 m2 ?
I did it in a rush so not too sure lol
That is what I got as well.
In regards to the exam, this exam was definitely a lot more straightforward than the previous one--didn't expect there to be such a discrepancy between the difficulty of the first and second exam.
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That is what I got as well.
In regards to the exam, this exam was definitely a lot more straightforward than the previous one--didn't expect there to be such a discrepancy between the difficulty of the first and second exam.
Really? I felt the 2019 E2 was way easier :(
This year’s one had so many words and it was hard to understand the questions
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That is what I got as well.
In regards to the exam, this exam was definitely a lot more straightforward than the previous one--didn't expect there to be such a discrepancy between the difficulty of the first and second exam.
It was really long tho - it's kind of like the first exam in the way that there were many questions all of medium highish difficulty so timing was really pressed
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Really? I felt the 2019 E2 was way easier :(
This year’s one had so many words and it was hard to understand the questions
It was really long tho - it's kind of like the first exam in the way that there were many questions all of medium highish difficulty so timing was really pressed
I agree that this was harder than the 2019 exam and a few others, but I found that it was much easier than the 2020 exam 1. An exam like this was within my expectations, but the exam 1 was not.
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I reckon the MC's were ridiculously hard. I mean they needed TIME esp the ones towards the end.
First 2 questions for ER were good, except that one question where they asked for the value of k.
That one probability question which asked for highest and lowest possible values of y... what did ppl get for that??
Question 4 was not too bad except my n value didn't fall in the domain of 0<n<3 :(
oh yeah, last two parts to question 5, had no idea what was going on... But they were only worth 2 marks in total so...
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837 m2 ?
I did it in a rush so not too sure lol
yeah that's what I got as well.
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I agree that this was harder than the 2019 exam and a few others, but I found that it was much easier than the 2020 exam 1. An exam like this was within my expectations, but the exam 1 was not.
Yea - I agree with you on that, I walked out of exam 1 feeling so bad - the algebra was terrible and I made so many dumb mistakes but exam 2 was pretty expected and CAS was used so
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I reckon the MC's were ridiculously hard. I mean they needed TIME esp the ones towards the end.
First 2 questions for ER were good, except that one question where they asked for the value of k.
That one probability question which asked for highest and lowest possible values of y... what did ppl get for that??
Question 4 was not too bad except my n value didn't fall in the domain of 0<n<3 :(
oh yeah, last two parts to question 5, had no idea what was going on... But they were only worth 2 marks in total so...
I got y is subset of [2/11,2/3] (idk rly) :P
That Q was so messed up ugh
What does overall probability even mean lol
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I got y is subset of [2/11,2/3] (idk rly) :P
That Q was so messed up ugh
What does overall probability even mean lol
Yay I got those values too - didn't write it as a subset tho lol
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What did u guys got for the mean in the probability question? ( when they changed the mean so like 46% or something fell within -4.5 and 0.5)
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What did u guys got for the mean in the probability question? ( when they changed the mean so like 46% or something fell within -4.5 and 0.5)
-1.5 and -2.5
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-1.5 and -2.5
I got this as well, but I have no idea if is correct - thought that was the intuitive answer but idk how to show working for it
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I got this as well, but I have no idea if is correct - thought that was the intuitive answer but idk how to show working for it
Same
It was 100% CAS working lol
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Yay I got those values too - didn't write it as a subset tho lol
Looks like I didn’t read the question oops
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Same
It was 100% CAS working lol
Really? That was one of the few questions that wasn't CAS working for me--as it's basically just translating the original distribution left.
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Really? That was one of the few questions that wasn't CAS working for me--as it's basically just translating the original distribution left.
I said that because of symmetry, if it was k was an element of [-2.5, -1.5] the probability the thingo would be between -4.5 and 0.5 would be more than 0.48 (or whatever that probability was)
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-1.5 and -2.5
I only got -1.5. :-\
That one probability question which asked for highest and lowest possible values of y... what did ppl get for that??
I got 1/3 and 3/11... did it in a hurry though so I don't know if I was right. Basically I looked at what the mean should be and what it was for the different parts, if y=0.3 or 0.7, got the answers from there.
Overall, as an exam, I thought it was pretty good. I ran out of time, which was sad (had to guess around five or seven questions :-\) but I did enjoy doing it. It was fun. Although I don't think I'll do very well, obviously. (I'm anticipating ~50% for each exam.)
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did you guys get like (0.80, 2.something) for the intersection between the two lines with the p is perpendicular question?
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did you guys get like (0.80, 2.something) for the intersection between the two lines with the p is perpendicular question?
Yep, (0.80,2.39).
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and did you get something weird like -2.61 to -1.41 and 1.41 to 2.61 for the x values for which the height was <2?
Also for the k values where the height was <20, did you get 1<=k<7/6?
and n=19 for the binomail question?
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and did you get something weird like -2.61 to -1.41 and 1.41 to 2.61 for the x values for which the height was <2?
Also for the k values where the height was <20, did you get 1<=k<7/6?
and n=19 for the binomail question?
yes, same answers.
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yes, same answers.
THANK YOU !!!!!! i feel so relieved
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What do you guys reckon the grade cut offs will be for this year?
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This exam is harder than last few years... :P
Some questions are wired(hard to understand the meanings). There is also a timing problem. Although the questions in the exam are not very hard, it is easy to make silly mistakes under the stressful timing condition(not enough time to check answers.... :-\
what's done is done. we should move to spesh tomorrow :)
Eat well tomorrow, drink plenty of water, and try and rest up.
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Yep, (0.80,2.39).
As did I.
we should move to spesh tomorrow :)
What, shift to the subject merely for the joy of another maths exam? ;)
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Honestly, considering how bad the exams were this year, what do you think the averages for both will be?
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Honestly, considering how bad the exams were this year, what do you think the averages for both will be?
Last year the E1 was like 33.5 and E2 was 67 for an A+
This year is definitely lower so maybe we're looking at 31 and 65
btw - is an A+ a 40? I know people who only got A's and average SACs and got like 40+ so I'm not too sure what an A+ means anymore
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Just wondering guys but what study score do you think a 83% in exam 1 and a 63% in exam 2 give?
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Last year the E1 was like 33.5 and E2 was 67 for an A+
This year is definitely lower so maybe we're looking at 31 and 65
btw - is an A+ a 40? I know people who only got A's and average SACs and got like 40+ so I'm not too sure what an A+ means anymore
Nah what was the average mark, like I don't think I'll even hit 25 ss
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Last year the E1 was like 33.5 and E2 was 67 for an A+
This year is definitely lower so maybe we're looking at 31 and 65
btw - is an A+ a 40? I know people who only got A's and average SACs and got like 40+ so I'm not too sure what an A+ means anymore
A+ has a rough correlation to a 40+ study score. However, it is very possible to only A+ 1 exam and get a 40+. It is also possible to get two A's on the exam (they would need to be "high" A's) along with A+ sacs to get a 40+.
I don't think two A's with C+ sacs would get a 40.
Just wondering guys but what study score do you think a 83% in exam 1 and a 63% in exam 2 give?
Thinking maybe low-mid 30s but could definitely be pushed up/down depending on sacs.
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Just wondering guys but what study score do you think a 83% in exam 1 and a 63% in exam 2 give?
Thinking maybe low-mid 30s but could definitely be pushed up/down depending on sacs.
Out of curiosity Sine, what do you think basically 80% on both exams would get, with what I think was a fairly high SAC ranking (A+ hopefully)? (Yes I stuffed up the exams lol.)
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Hi everyone, solutions to exam 1 & 2 attached
if you think there is an error, log it here
https://docs.google.com/spreadsheets/d/1obtfeRDsR24BwZWFKqc_kb5o9WnoqsvD4jZPfAiVGBs/edit#gid=0
Edited to remove exams since VCAA has the copyright and doesn't allow people to share them before they've released them online - Bri
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I might be wrong but for 1f) shouldnt it be -1.41 not -1.08
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Hi everyone, solutions to exam 1 & 2 attached
if you think there is an error, log it here
https://docs.google.com/spreadsheets/d/1obtfeRDsR24BwZWFKqc_kb5o9WnoqsvD4jZPfAiVGBs/edit#gid=0
Hey,
I absolutely love your spirit in sharing the exam solutions but unfortunately VCAA exams are copyrighted and we can't let people share them on the forums :( If you can can share solutions in a way that doesn't show the actual exam book we can leave that up but since these are annotated on the exam booklet itself I have to take it down. Sorry :/
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What happens if calculator was in degree mode for a lot of the exam
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There was a question where I used - I think it was the probability one? - the || thing, where I think it was Pr(|X=y|)>2 or something like that. Would that be marked down or anything, if I got the right answer? i.e. was it a valid way of doing a question?
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What happens if calculator was in degree mode for a lot of the exam
I think it would only mess up the river question
And that “find the angle” one
Otherwise not a bit deal really
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i had good sac marks all year (top 10%) but really flunked both exams (23/40, 59/80) and i'm feeling really down. is there any way i can still get over 40?
The exams were hard so there is still hope, since lots of people are in the same boat
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i had good sac marks all year (top 10%) but really flunked both exams (23/40, 59/80) and i'm feeling really down. is there any way i can still get over 40?
Hate to be a debbie downer but in the spirit of being honest..
Even if you were Rank 1 at Macrob/MHS, with 23/40 E1 and 59/80 E2 even in the most difficult exam year in the last 15 years you would not get a 40 raw score.
This is likely a 35-37, maybe 38 or 39 in the most optimistic outcome.
To add onto this though, you've likely gained so much more from your experience that's not study score related (e.g. better studying habits, better mentality to coping with stress, etc) so focus on those instead! :)
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This is likely a 35-37, maybe 38 or 39 in the most optimistic outcome.
Any chance you can predict my study score Orb? I got minimum ~80% on both exams (possibly a few % points more if they're generous), and in terms of SACs my average this year was 92% so I think I would've been highly ranked at my school - which normally does pretty well in Methods (though I don't know how high; probably top 10 if I'm optimistic). I definitely did a lot better in the SACs than in the exams anyway lol.
Edit: Or anyone lol