ATAR Notes: Forum
Archived Discussion => VCE Exam Discussion 2020 => Exam Discussion => Victoria => Maths Exams => Topic started by: lleonx2 on November 13, 2020, 04:58:59 pm
-
I’d like to compare answers for today’s multiple choice exam, and couldn’t find another post for it.
Core:
1B 2D 3C 4C 5E 6D 7A 8D 9D 10A 11E 12B 13E 14C 15D 16D 17B 18C 19A 20D 21A 22C 23C 24D 25B 26E 27B 28C 29B 30B
the answers for core have been double checked with all posters in this thread and the vce subreddit discussion.
Module 4:
1C 2D 3E 4B 5B 6A 7C 8A 9C 10E
the answers for mod 4 have been double checked with the vce subreddit discussion.
-
I was looking for this thread
I dont remember my answers and i didnt take my book home but one question did confuse me a little. Question 13, i didnt understand some of the answers.
-
I was looking for this thread
I dont remember my answers and i didnt take my book home but one question did confuse me a little. Question 13, i didnt understand some of the answers.
for 13, I guessed e in the exam. I checked the textbook later, which says that the least squares regression line minimises the sum of the squared residuals, or vertical distances.
-
Hey AN!
Not too sure if this is helpful to anyone, but here are the answers me and the Further teachers at my school came up with for Core + Module: Geometry and Measurement.
Let me know if you think there is a mistake in it! (I may have accidentally mistyped a letter) ;D
-
Hey AN!
Not too sure if this is helpful to anyone, but here are the answers me and the Further teachers at my school came up with for Core + Module: Geometry and Measurement.
Let me know if you think there is a mistake in it! (I may have accidentally mistyped a letter) ;D
thanks heaps for this, we got the same answers ( ・∇・)
-
anyone got matrices answers?
-
anyone got matrices answers?
A
E
D
C
D
B
B
E
B
E
-
Ok this is what I got for questions 1 to 9 of Networks module:
1D 2D 3B 4C 5D 6E 7E 8E 9C
Let me know if anyone got anything different!
-
is “yes/no” ordinal i need to know😔
-
is “yes/no” ordinal i need to know😔
It's nominal
-
It's nominal
yep! any categorical variables that can’t be ordered are nominal -u-
-
yep! any categorical variables that can’t be ordered are nominal -u-
i thought so haha thank you:)
-
Q16 is C not D
Sorry it is C !!
-
Q16 is C not D
Sorry it is C !!
What was question 16 again?
-
Long term mean rainfall in December - was 76.4 (D)
-
Long term mean rainfall in December - was 76.4 (D)
so the answer is d right 😳
-
I got A for 20, instead of D like the original poster of this thread. Can anyone help determine the correct answer? :)
-
Long term mean rainfall in December - was 76.4 (D)
Ohhh yea i got d too, but by using the solve function
-
I got A for 20, instead of D like the original poster of this thread. Can anyone help determine the correct answer? :)
What was the question about ?
-
Total passengers Jan to May is 2160000
Find 5 mean smoothed for March
-
Total passengers Jan to May is 2160000
Find 5 mean smoothed for March
Didnt you have to just divide it by 5. I hope thats it.
-
What was the question about ?
Unfortunately it has a graph in it, so it is a bit hard to explain if you dont have the exam/ visual! It was a question on five median smoothing.
I also got a different answer to the original user for question 26! While they put E, I put D! What did everyone else answer?
The question for 26 was-
Ray deposited $5000 in an investment account earning interest at the rate of 3% per annum, compounding quarterly.
A rule for the balance, Rn, in dollars, after n years is given by:
A: Rn= 5000 x 0.03^n
B: Rn= 5000 x 1.03^n
C: Rn= 5000 x 0.03^4n
D: Rn= 5000 x 1.0075^n
E: Rn= 5000 x 1.0075^4n
-
Unfortunately it has a graph in it, so it is a bit hard to explain if you dont have the exam/ visual! It was a question on five median smoothing.
I also got a different answer to the original user for question 26! While they put E, I put D! What did everyone else answer?
The question for 26 was-
Ray deposited $5000 in an investment account earning interest at the rate of 3% per annum, compounding quarterly.
A rule for the balance, Rn, in dollars, after n years is given by:
A: Rn= 5000 x 0.03^n
B: Rn= 5000 x 1.03^n
C: Rn= 5000 x 0.03^4n
D: Rn= 5000 x 1.0075^n
E: Rn= 5000 x 1.0075^4n
I did E as well, because theyre asking for the rule after a year and there are four compounding periods in a year. I might be wrong tho.
-
Unfortunately it has a graph in it, so it is a bit hard to explain if you dont have the exam/ visual! It was a question on five median smoothing.
I also got a different answer to the original user for question 26! While they put E, I put D! What did everyone else answer?
The question for 26 was-
Ray deposited $5000 in an investment account earning interest at the rate of 3% per annum, compounding quarterly.
A rule for the balance, Rn, in dollars, after n years is given by:
A: Rn= 5000 x 0.03^n
B: Rn= 5000 x 1.03^n
C: Rn= 5000 x 0.03^4n
D: Rn= 5000 x 1.0075^n
E: Rn= 5000 x 1.0075^4n
Question 20 was 5 mean smoothing, not median, you just divide 2160000 by 5 to get D. Question 26 was E - D gives the balance after n quarters, not years.
-
Question 20 was 5 mean smoothing, not median, you just divide 2160000 by 5 to get D. Question 26 was E - D gives the balance after n quarters, not years.
my reasoning for e was basically the same, lemme walk u through what I was thinking. idk if I was right though bahaha
so we start with 3% pa and divide it by 4 for our 0.75% per quarter, which eliminates a b and c. i thought d would be the rule for balance after n quarters, so I chose e over d since there are 4 quarters in a year. did I explain that ok ?
-
can anyone send or email pictures of the question book, core + module to me, supervisors didn't give us the option to keep it at the end of the exam. :(
-
my reasoning for e was basically the same, lemme walk u through what I was thinking. idk if I was right though bahaha
so we start with 3% pa and divide it by 4 for our 0.75% per quarter, which eliminates a b and c. i thought d would be the rule for balance after n quarters, so I chose e over d since there are 4 quarters in a year. did I explain that ok ?
Yep, hopefully we're right
-
Ok this is what I got for questions 1 to 9 of Networks module:
1D 2D 3B 4C 5D 6E 7E 8E 9C
Let me know if anyone got anything different!
Yep that's what i got then A for 10
-
This discussion is really thriving damnnn :)
-
Is there an accessible copy of the Exam 1 anywhere online :)
-
I got a 39/40 on Exam 1, and my SAC average is 99% in a very strong cohort, I think I am rank 1
If I manage to get 60/60 on Exam 2, is a 50 still possible?
If not, then is a 49?
Thanks,
-
Can someone please explain Q30, the last finance question? I keep getting option E. I looked at the question and started working backwards. my working out is as follows;
step 1) latest 10 yrs
n = 10 x 12
i = 2.8
[Pv =
Pmt = 0
Fv = 686904.09
py/cy = 12
found Pv = -519320
2) added the 10,000 lump payment
= 529320
3) original ten yrs
n = 10 x 12
i = 3.2
[Pv =
Fv = 529320
Pmt = 0
py/cy = 12
found Pv = -384529.16
then rounded up to 385,000 for the answer!
someone pls tell me where I went wrong :)
-
Can someone please explain Q30, the last finance question? I keep getting option E. I looked at the question and started working backwards. my working out is as follows;
step 1) latest 10 yrs
n = 10 x 12
i = 2.8
[Pv =
Pmt = 0
Fv = 686904.09
py/cy = 12
found Pv = -519320
2) added the 10,000 lump payment
= 529320
3) original ten yrs
n = 10 x 12
i = 3.2
[Pv =
Fv = 529320
Pmt = 0
py/cy = 12
found Pv = -384529.16
then rounded up to 385,000 for the answer!
someone pls tell me where I went wrong :)
Since you were working backwards, you'll actually have to subtract the $10,000 instead of adding it, as you're trying to find the initial value.
So the PV of the latest 10 years will be the FV of the first 10 years + $10,000
So when you find the first 10 years FV you will have to do PV - $10000
-
I got a 39/40 on Exam 1, and my SAC average is 99% in a very strong cohort, I think I am rank 1
If I manage to get 60/60 on Exam 2, is a 50 still possible?
If not, then is a 49?
Thanks,
i wanna know the same, i think I’m rank 1 in a low cohort with 40/40 mc
Since you were working backwards, you'll actually have to subtract the $10,000 instead of adding it, as you're trying to find the initial value.
So the PV of the latest 10 years will be the FV of the first 10 years + $10,000
So when you find the first 10 years FV you will have to do PV - $10000
explained it perfectly ^^
-
Since you were working backwards, you'll actually have to subtract the $10,000 instead of adding it, as you're trying to find the initial value.
So the PV of the latest 10 years will be the FV of the first 10 years + $10,000
So when you find the first 10 years FV you will have to do PV - $10000
oh wow hahahah thanks! that makes sense
-
Hey guys,
I am really panicking right now because I think I screwed up a really simple question on the exam. It was question 7 from Core. My teacher said it was 3 discrete numerical variables (C) but I only put down 1 (A). What was the correct answer and what is the logic behind it???
Thank you.. :-\
-
Hey guys,
I am really panicking right now because I think I screwed up a really simple question on the exam. It was question 7 from Core. My teacher said it was 3 discrete numerical variables (C) but I only put down 1 (A). What was the correct answer and what is the logic behind it???
Thank you.. :-\
It should be A so dont stress.
-
It should be A so dont stress.
It should be 1. 2 of them were continuous and 1 was categorical
-
Yep that's what i got then A for 10
I got A for q8 for Networks. How is it E? Did I misinterpret the question?
-
Q16 is C not D
Sorry it is C !!
How so?
-
Long term mean rainfall in December - was 76.4 (D)
Yeah, i got the same as you D