I think question 4 in core is D as postcode is categorical. Don't worry I made the same mistake!
Question 8. Are you sure it's E? That doesn't quite make sense to me.Which question 8?
Which question 8?
I think question 4 in core is D as postcode is categorical. Don't worry I made the same mistake!Had that, made a typo. Changed it though, thanks!
Tentative Solutions[/list]SpoilerNumber Patterns
- A
- C
- D
- E
- B
- E
- C
- B
- D
Graphs and Relations
- B
- E
- D
- B
- A
- D
- B
- B
- C
Core. I got AThat would've been for a single stemplot, for a back to back you need two categories.
That would've been for a single stemplot, for a back to back you need two categories.
That Question 6 for Core was a tough one this year, however, drawing it on CAS produced A..not 100% though.Got the same for matrices as you, checked it again after I posted.
Question 9 for Core is B, -0.005, how'd you get C out of curiosity?
and Matrices Question 9 is C because B is actually the inverse of A
Got the same for matrices as you, checked it again after I posted.Cool :)
For q9 in core you are correct, I may have entere the values incorrectly the first time.
Cool :)It's not too bad if you do the outlier calculations first.
That Question 6 though, that was really unfair for this year, but, I do think it's A cause of the CAS.
For Core, I got:
4. D
6. A
8. C
9. B
12. C
For Core, I got:
4. D
6. A
8. C
9. B
12. C
Cool :)
That Question 6 though, that was really unfair for this year, but, I do think it's A cause of the CAS.
Hey Dan just curious, question 5 for matrices, how did you get A? :)This is the problem with putting solutions up from a phone, that was also a typo! Sorry, the answer I got was C!
This is the problem with putting solutions up from a phone, that was also a typo! Sorry, the answer I got was C!
Oh thank god for that, thankyou for this! :)No worries, thanks for pointing it out, before it panicked too many people hopefully!
for 5 a for networks how is it a Hamiltonian path? i got b a Eulerian path as two of the vertices were odd and the others were even?Question 5 in networks was about a minimal spanning tree?
also question 9 for geometry how is it d? because if you do it using ratios of 81:36 after squaring the height and then cross multiplying to find x which i got was 80?The ratio is 25:9 (simplified), multiply by 180 gives 500, which is the area of the cone from the shaded part up (including the shaded part). It only wants the shaded part so 500-180=320.
sorry i meant question 1You may want to read the question again, it told you the path the bus took, it had nothing to do with what paths were possible therefore the degrees of each vertice are not relevant for this question?
Question 7 Networks, I had B. Could only make two of them planar?With a bit of rearranging, they can all be made planar.
Anyone got solutions for geo/trig and business?Geo and trig are up.
Can someone please explain the following questions:
Core: 4,6,8,11,13
Could anyone explain why in core 12 is a?? I thought it was C, ThanksGo to the 2011 examiners report and look at q12, its almost the same question.
Graphs and relations q7 are u sure it's b??The boundaries are, in this question, the corner points.
With a bit of rearranging, they can all be made planar.100% sure?
Can someone please explain the following questions:Trig.
Core: 4,6,8,11,13
Trig: 6,9
100% sure?Yes, but which ones couldn't you make planar and I'll have a look?
The boundaries are, in this question, the corner points.
(0,0) given
(0,6) => 3(0)+5(6) = 30
(5,3) => 5+3 = 8
(8,0) => 8+0 = 8
So all these points satisfy all inequalities.
1st and 2nd.1st one. Take the very bottom vertice up to the top so its above the top two, then if you redraw the edge from the top right to the bottom left it becomes planar.
These solutions are unverified and may contain mistakes, if you find one please let me know and I'll modify the
Faa bro work on ur business maths.. most of the solutions are wrong.
These solutions are unverified and may contain mistakes, if you find one please let me know and I'll modify theI didnt do the business solutions, i only did Core, Trig, Networks and matrices. The others were added by the admin.
Faa bro work on ur business maths.. most of the solutions are wrong.
My results for Business someone please confirm for me
1.D
2.C
3.C
4.E
5.C
6.D
7.B
8.D
9.D
My results for Business someone please confirm for me
1.D
2.C
3.C
4.E
5.C
6.D
7.B
8.D
9.D
Did anyone else get E for question 9 in Business?
Why is trig q9 not A...?How did you get A?
All but 9 is correct. For question 9 you didn't calculate the interest that would also have to be payed on the $802.39. The answer should be E.
How did you get A?
All but 9 is correct. For question 9 you didn't calculate the interest that would also have to be payed on the $802.39. The answer should be E.
Damn :( well thank you for the correction :)
(I may be wrong here...)The height of the second cone is 15, you need to add the two together.
two heights = 6 and 9
9/6 = 1.5 = k
k^2 (because area) = 2.25
2.25x = 180
x = 80
Damn :( well thank you for the correction :)
Thank you :) still i've lost 4 stupid marks hahaha hopefully study score of atleast 40 is still in reachDefinitely still within reach.
I also don't understand how question 6 is A. The third quartile (37th dot) is clearly located above ~46-47 ish, and E is the only answer that reflects this.I graphed it on my calc and it displayed Box plot similar to E.
is the OP being edited to keep up with errors?(if there are any)I've updated the core, trig, networks and matrices module as the answers are confirmed and discussed, the moderators have been changing the other modules as necessary.
I also don't understand how question 6 is A. The third quartile (37th dot) is clearly located above ~46-47 ish, and E is the only answer that reflects this.
lost eight :'(Definitely!
35+ still possible ?!!
lost eight :'(You still have Exam 2, so definitely possible.
35+ still possible ?!!
Hey guys,
Can someone please verify and explain why number patterns question 7 is C? Made a few really bad mistakes and am on the verge of tears haha bye bye 45+ :'( :'( :'( :'( :'( :'(
Cheers
For the Core isn't the answer to question 12 C? Because the index is 1.25
What I did was instead of p and q
I replaced them with numbers, so for example 1 and 2..
Found 4th and 5th term and found the difference, which was p +q
Can someone please verify and explain why number patterns question 7 is C?
For the Core isn't the answer to question 12 C? Because the index is 1.25Sadly, no :/
Sadly, no :/Sorry but I don't think it's that unfair, anyone who had done the previous VCAA exams as revision and checked the answers they werent sure about or got wrong would've known how to answer that question. Hopefully your teacher recommended you do that as preparation for the exam?
It was honestly an extremely unfair question.
Check out Further math Exam 1 2011 Core: Q12 answers on VCAA.
It was near identical to the one we had this year.
Cool :)
That Question 6 though, that was really unfair for this year, but, I do think it's A cause of the CAS.
Can someone please explain to me why question 11 core is E? I thought to find the deseasonalised value you have to divide the actual figure by the seasonal index?That is correct, did you use the correct SI for May, or did you use the one you found in the question above, for December?
Sorry but I don't think it's that unfair, anyone who had done the previous VCAA exams as revision and checked the answers they werent sure about or got wrong would've known how to answer that question. Hopefully your teacher recommended you do that as preparation for the exam?
Of course, all teachers recommend that.They need questions like that occasionally to differentiate between students? And given that it was on a recent exam, hopefully most students were shown how to do that question in class, as it was done so poorly.
I did the revision myself and that's how I got the right answer for that question.
My point is that only 10% of the whole state had the right answer that year, why use it again?
They need questions like that occasionally to differentiate between students? And given that it was on a recent exam, hopefully most students were shown how to do that question in class, as it was done so poorly.I suppose you are right about that.
That is correct, did you use the correct SI for May, or did you use the one you found in the question above, for December?
Of course, all teachers recommend that.
I did the revision myself and that's how I got the right answer for that question.
My point is that only 10% of the whole state had the right answer that year, why use it again?
Took me a bit but i thought it was simple once you figure out what to do, you know the median and Q3, calculate the upper fence and done
Hey guys,
Sorry to ask again and bust everyones balls but for question 6 in core, how did everyone know Q3? I still believe it was E... Lmao unless I'm completely retarded :o
Cheers
I suppose you are right about that.At least it was in core, as it is the only compulsory module, I would be expecting a much higher percentage of correct answers for that question this year, which would mean that students are being taught to the exams, which is a good thing. The range of questions that can be asked is also somewhat limited for core, so most of the questions are just modified versions of older questions, just some of them probably date back before 2006.
There will always be a question like that every year I guess.
Hey guys,q3 is the 38th point, which was 50. So when you do the calculation for the upper fence (max value before it becomes an outlier) you do 50+1.5x(50-30)=80, therefore anything above 80 is an outlier, which was only two values.
Sorry to ask again and bust everyones balls but for question 6 in core, how did everyone know Q3? I still believe it was E... Lmao unless I'm completely retarded :o
Cheers
Networks questions 9? is it really C?My solutions say D?
q3 is the 38th point, which was 50. So when you do the calculation for the upper fence (max value before it becomes an outlier) you do 50+1.5x(50-30)=80, therefore anything above 80 is an outlier, which was only two values.
I thought networks question 7 was D. I can't seem to redraw the first graph as planar. Can someone post a picture of how they did the first graph as planar?Take the bottom vertice to the very top, and then redraw the edge from the top right vertice to the bottom left so that it goes around the bottom right?
My solutions say D?OH , sorry my bad i read it wrong, can you please show me how you got D?
I could't redraw the 2nd graph or the first graph1st one. Take the very bottom vertice up to the top so its above the top two, then if you redraw the edge from the top right to the bottom left it becomes planar.
Hey guys,With Box Plots remember, 25% is below the Q1, 25% between Q1 and Median, 25% between Median and Q3 and 25% above Q3.
Sorry to ask again and bust everyones balls but for question 6 in core, how did everyone know Q3? I still believe it was E... Lmao unless I'm completely retarded :o
Cheers
OH , sorry my bad i read it wrong, can you please show me how you got D?A and B are not cuts as they do not completely separate the source from the sink.
Take the bottom vertice to the very top, and then redraw the edge from the top right vertice to the bottom left so that it goes around the bottom right?
I see it now, thanks.
I'm quite disappointed with 37/40, especially when I got full marks when I did the 2013 one :(
Do I still have a chance of like mid-40s if I get an A+ for Exam 2?
With Box Plots remember, 25% is below the Q1, 25% between Q1 and Median, 25% between Median and Q3 and 25% above Q3.
With this in mind, you can use the Q3+IQRx01.5 rule to find the upper fence, at which point, any data point greater than or equal to this is an outlier.
This requires a little bit off rough estimating, so Q1 is 25% of 50; Q1 = 12.5. Q3 is 75% of 50; Q3 = 37.5.
Count through and find the 12.5th point and the 37.5th point. They seem to be approximately 29 and 49, respectively.
This means the IQR = 20. Use the rule: Q3+IQRx01.5 so now 49+20x1.5 = 79.
Only two data points lie above 79, therefore, A is the correct option.
Anybody able to explain why Q9 from number patterns is D when C clearly works. after about 20 days 500 grams are in her body and 200 which is 40 percent is being removed each day. C said less than 200 is the max from each 24 hour peroid therefore it is not true and is what they were asking forOption C is true, actually.
Thanks Dan1995 and Lucho23 for the clarification, turns out I just am retarded :o Thanks again guys, sorry to be a pain :)Don't stress, still plenty of marks to make up on exam 2.
A and B are not cuts as they do not completely separate the source from the sink.darn! i forgot that maximum flow = minimum cut , sigh lost two marks. Thanks anyway!
C has a capacity of 20.
D has a capacity of 18 (as the 4 is not counted).
E has a capacity of 22.
Thanks Dan1995 and Lucho23 for the clarification, turns out I just am retarded :o Thanks again guys, sorry to be a pain :)No problem :) Make sure you ask, or else you'll keep making the same mistakes.
To anyone else who got E.. Check if you forgot to count the outliers at the end as points, the 3rd quartile should actually be 50, not 47"n=50"
Definitely wearing glasses to my future exams -.-
I see it now, thanks.
I'm quite disappointed with 37/40, especially when I got full marks when I did the 2013 one :(
Do I still have a chance of like mid-40s if I get an A+ for Exam 2?
Are we sure that question 13 core is option C ??? Cause thats what I did and I don't want it to be wrong!The gradient is unchanged, so the answer is C.
how is if possible for there to be any planar graphs in the networks question 7?Because you have to redraw them. All 4 can be rearranged and moved to become planar.
how is if possible for there to be any planar graphs in the networks question 7?
Did anyone else find this year harder than recent years?
Did anyone else find this year harder than recent years?After going through all of the questions again, I felt that, as always, there were odd questions, but they were a bit more manageable this time around.
I felt it was relatively on par with the previous years exams.
After going through all of the questions again, I felt that, as always, there were odd questions, but they were a bit more manageable this time around.
Proposed answers are below! If you feel like something is incorrect, post what you think it is and why and if you're right, we'll change the original thread :)
Core.
1. B
2. D
3. C
4. D
5. B
6. A
7. C
8. E
9. B
10. E
11. E
12. A
13. C
Number PatternsSpoiler1. A
2. C
3. D
4. E
5. B
6. E
7. C
8. B
9. D
Geometry and TrigonometrySpoiler1. B
2. C
3. D
4. C
5. D
6. E
7. A
8. B
9. D
Graphs and RelationsSpoiler1. B
2. E
3. D
4. B
5. A
6. D
7. B
8. B
9. C
Business-related MathematicsSpoiler1. D
2. C
3. C
4. E
5. C
6. D
7. B
8. D
9. E
NetworksSpoiler1. D
2. D
3. C
4. A
5. A
6. B
7. E
8. E
9. D
Matrices.Spoiler1. A
2. B
3. B
4. C
5. C
6. E
7. D
8. E
9. C
Good luck with exam 2 everyone!
wouldn't question 2 be C? for matrices:/ doesnt make sense
So you guys think that the cut off for A+ will be 37 again? Some years it has been 36
Honestly it's very difficult to predict what the cut off will be for further exams, specifically exam 1. I believe it will be 37 again however for I wouldn't be surprised if it were 36.
Honestly it's very difficult to predict what the cut off will be for further exams, specifically exam 1. I believe it will be 37 again however for I wouldn't be surprised if it were 36.
Is anyone able to scan their copy of the exam through? I don't have mine with me and it would be great to check answers
Can someone please explain why Q9 for Buisness is E and not D?
Did anyone else find this year harder than recent years?
I got E and this is my reason. After the 47th payment, you still owe $802.39 and need to repay it. But by the 48th payment, you have to repay that and the interest added on that reduced balance, hence $805.57 (E). Thats how I see it, hope someone smarter than me can explaining it better :)
Option C is true, actually.
Try this: Chuck the sequence in a column on a spreadsheets page. In the column next to the sequence, multiple each Dn value by 0.4 (=a1*0.4 and drag this for all cells).
This never reaches 200, therefore showing that the amount leaving her body is always below 200.
Are we sure that question 13 core is option C ??? Cause thats what I did and I don't want it to be wrong!
okay so I'm not really good at further, and i just want to get an average mark possibly 20, what do you reckon my exam mark needs to be?Not sure. By using this: http://www.vcaa.vic.edu.au/Documents/statistics/2013/section3/vce_further_mathematics_ga13.pdf
Anyone able to explain trig q6 please?
Can someone please explain Question 8 in Number patterns is B and not A?
Hey sorry to ask again, but what did everyone get for Graphs & Relations question 5?You're correct :) Unfortunately, your friend didn't get it correct because the average time includes the stationary time.
When I checked with a friend, he got all the same as me except question 5 in graphs about the average speed of the train.
What he did was find the average of the two periods of time the train was actually moving, and excluded the time it stopped, so he got D (65) as the answer.
I took "the average speed of the train...for the journey" to mean for the whole journey and ended up with A (45).
how many stupid mistakes did people make?
how many stupid mistakes did people make?
how many stupid mistakes did people make?
Can someone please explain Question 8 in Number patterns is B and not A?
Hey everyone
My friend got a B on further today but shes rank one
Will she still get a 40 or above??!!!??
(she's not on Facebook so she asked me to ask for her)
I'm not sure about question 4 in Geometry and Trig. How did you guys get C? I can't even replicate it.
I got A by doing tan (23) = opposite over 150, because there was 150m difference between the heights of the two points and we are looking for the horizontal (not straight-line) distance. You draw the triangle and work it out.... right.... c'mon guys please.. don't let me lose another mark here :/
I'm not sure about question 4 in Geometry and Trig. How did you guys get C?
Anyone able to explain trig q6 please?
Sure, Soysauce.Step 1a: Note that the question's looking for "Point C from A"
Try the cosine rule and add the 140 degrees that's there.
I'll explain it better in a minute. Just give me the okay.
Hey guys I just say the examination today for exam 1. I got 36/40 will I still be able to get a 40 raw, I have a 92% sac average and if so what would I need on exam 2 to get this score?Ask OutstandingInDivination: asdfmovie
Hey guys I just say the examination today for exam 1. I got 36/40 will I still be able to get a 40 raw, I have a 92% sac average and if so what would I need on exam 2 to get this score?
Hey guys I just say the examination today for exam 1. I got 36/40 will I still be able to get a 40 raw, I have a 92% sac average and if so what would I need on exam 2 to get this score?My friend got 96-97% SAC average and was ranked in top 5. She lost about 6-7 marks on Exam 1 and then 1 on Exam 2. She got a 43. Anything is possible, you just need to stop worrying about an 'achievable score' and go for the perfect score! SS is unpredictable, that's why no one can properly guess them! Just give it your all (I know that's generic but I wanted to know my SS so bad as well but realised all that worrying was wasted). Hope Exam 2 goes well! :)
Hey the guy who posted the answers,
How can the answer for question 6 in matrices be C if the order of X is 3x2?
Hey the guy who posted the answers,
How can the answer for question 6 in matrices be C if the order of X is 3x2?
Hey the guy who posted the answers,Hey the guy who asked a question without reading the post properly, the listed answer was not C.
How can the answer for question 6 in matrices be C if the order of X is 3x2?
Hey the guy who asked a question without reading the post properly, the listed answer was not C.
Your's truly, the guy who posted the answers.
sorry dude didnt see tht. btw i got 35/45 for ex1 and hoping to get 60/60 for ex2 and i got 95/100 for sacs. what SS will i be achieving at this stage
Hello could anyone explain how question 9 of Networks is D? I had B, not sure how it could be D? Thanks!!Cut D has the edge of 4 which goes back from Sink to Source, therefore it is not counted making it 18
Hello could anyone explain how question 9 of Networks is D? I had B, not sure how it could be D? Thanks!!Cut A and Cut B are immediately disregarded as it does not stop the flow from both car parks to the exit.
Hello could anyone explain how question 9 of Networks is D? I had B, not sure how it could be D? Thanks!!I explained that question in detail in an earlier post :)
I don"t understand how Q2 in business maths is C? I got A. Can someone please explain how they worked that out? Thanks in advance :)
I got E for Q5 in coreMind explaining how?
I got E for Q5 in core
Copy of the exam anyone?! :)Why it is not cut B
I explained that question in detail in an earlier post :)
Why it is not cut BB doesnt separate the sink from the source completely, you could still go from the top car park to the exit.
Why it is not cut B
Why Q6 not e in core
Why Q6 not e in coreThese have already been explained in earlier posts, but it's because E incorrectly shows that the value at approximately 74 was an outlier, whereas the only values that are outliers (according to Q3+1.5xIQR) are those values over 80. So the answer is A.
Q 8 number patterns? Why not A?
Q8 why it's not A in coreMate, these questions have all been explained in detail in earlier posts?
This is a geometric sequence, so the graph will have a curving pattern to itYeah but
I mean EThe information tells you that the elements in the matrix are the sum of the row and column number for that matrix. For example, the first element is in column 1, row 1, therefore it is a 2. (1+1=2)
Oh know. I am not doing well. So sadDon't be too concerned, just focus on exam 2 for now.
Yes.i did all the practise one's from 2002-2013. But I only get 72.5% on the first oneThe exams from before 2006 are not that relevant any more, I would reccomend looking more thoroughly at the more recent ones.
The exams from before 2006 are not that relevant any more, I would reccomend looking more thoroughly at the more recent ones.Thank you. How much study score I can get.if I get 80%for exam 2. My SAC average is 86.7
Thank you. How much study score I can get.if I get 80%for exam 2. My SAC average is 86.7Predictions are never really accurate, but likely within the range of 35-38.
Their is no logical explanation of why Question 8 Number Patterns wouldn't be A.I did not do number patterns for Further maths, and I didn't do the solutions for it as posted on here, but having a look at the notes and the question, my understanding is that a geometric sequence needs to be curved, to show an exponential increase (which would be option B), whereas option A is more of a linear increase.
Yeah but
Distance from x axis is same and this can't be for r less than -1
I think Question 6 in core is E as there are 3 outliers in the data and option A only has 2!That question has been discussed many times now, the general consensus is still A. As the lower median is 30, and the upper is 50. Therefore q3+1.5xIQR =50+1.5x(50-30)=80. Therefore there's only two outliers.
Can someone please explain Que 8 networking, why is E the correct answer? like why are the others false?A. You can have more than one Cp
Hey Zeus!
I chucked that answer up there. Here's why.
As it was just mentioned, the r values has to be less than -1. For option A, the graph shows that r = -1.
The only other graph that properly shows a geometric sequence with gradient of r < -1 is B.
If it was r < 0, then both A and B are fine. But r < -1.
Sub in some values! You'll see what I mean.
Hope this helps!
Can u tell me why Q7 is E not AWhat module?
NetworkBecause you can rearrange networks, they are not fixed. By rearranging the edges and vertices, they can all be redrawn as planar graphs.
Planar tree have no crossing edgesYes, and when you redraw them with the vertices and edges rearranged, the edges do not cross
How does A show r=-1?Ok, yeah, I got my explanation completely wrong :P
If r=-1, the term number would just alternate negative and positive, but be the same. Say I made a=-2 (a<0), if r=-1, t1=-2, t2=2, t3=-2, t4=2 etc
For example, I said for mine, a=-1 (as a<0) and said r=-2 (r<-1)
From graph A, you could see t1=-1, t2=2, t3=-4 as the y coordinate is increasing each time with graph a?
Hey how are you? I really need your help and understanding of this:
I'm paranoid that I may have over shaded the boxed for the Multiple Choice Answer sheet. Like, I think I may have gone too much over the boundaries for each box for it to be legible enough for the computer to read.
I would also like to know that if on the Multiple Choice Answer sheet you named your Modules in the boxes, but just in-case forgot to shade in the boxes, what can be done?
How does the computer interpret shaded answers, will it accept answers if the boxes are over shaded? ( this is how I shaded it --> http://postimg.org/image/5cahf0gab/ )
Thank you for help
Wouldn't question 2 in matrices be C?The only vertex that can be reached from vertex Y, is vertex D. Vertex C cannot be reached.
Can someone please help me with what study score I'd be looking at? Ranked 1 in an average cohort with an average of 98% on SACs and I got 35/40 for exam 1? (made some stupid mistakes!) Thanks :)Low 40's depending on exam 2 score
I made 2 really stupid mistakes in exam 1, like misread it. Is losing marks on exam 1 worse then exam 2? and provided with a 37/40 on exam 1 and a 60/60 on exam 2, what sort of score will i be looking at? Rank 2 in a quite a strong cohort.Technically marks on exam one are worth more than those on exam 2, but the difference is marginal. You would still be looking at 45+ with a 60/60
Thanks :D :D
Just a question - on the answer sheet it made us shade the box of our chosen modules AND write it down in the box provided.
One of my friends ticked the box instead of shading it.......... :o Will this matter in the process of the exams being marked as they are marked on the computer? Or will it be ok as we also had to write it down?
I have a question regarding Q9 of Core -
I did the equation and got -0.005, however, surely fuel consumption plotted against the weight of a car would be a positive slope?
E.g. wouldn't fuel consumption go up as the car for heavier and vice versa?
Thus, I gave D as the answer instead of B... what do you guys think?
That's what I thought. But I've been to lectures and they've said not to rule out an answer just because it doesn't seem probable in the real world. It would have had to be a negative slope because the information we were told lead us to that conclusion.
Proposed answers are below! If you feel like something is incorrect, post what you think it is and why and if you're right, we'll change the original thread :)
Core.
1. B
2. D
3. C
4. D
5. B
6. A
7. C
8. E
9. B
10. E
11. E
12. A
13. C
Number PatternsSpoiler1. A
2. C
3. D
4. E
5. B
6. E
7. C
8. B
9. D
Geometry and TrigonometrySpoiler1. B
2. C
3. D
4. C
5. D
6. E
7. A
8. B
9. D
Graphs and RelationsSpoiler1. B
2. E
3. D
4. B
5. A
6. D
7. B
8. B
9. C
Business-related MathematicsSpoiler1. D
2. C
3. C
4. E
5. C
6. D
7. B
8. D
9. E
NetworksSpoiler1. D
2. D
3. C
4. A
5. A
6. B
7. E
8. E
9. D
Matrices.Spoiler1. A
2. B
3. B
4. C
5. C
6. E
7. D
8. E
9. C
Good luck with exam 2 everyone!
D is what happens when you don't count the interest apparently.
Hey DAN, how did you get question 9 in bus maths as E shouldnt it be D
sorry i meant question 1it goes through each vertex once, and does not return to the original vertex, hence a Hamiltonian path
Hey DAN, how did you get question 9 in bus maths as E shouldnt it be D
??? I still don't see how postcode is categorical...
Ow well, what can you do?
This is because a data is numerical when you can measure it, postcode cannot be measured as they are numbers/codes allocated to categorize suburbs, hence it is a categorical data. Think about shoe size for example, same principle.Alright thanks I get it now, still tricky question
Sorry, I didn't do the business solutions, they were added by the moderators.
Hey DAN, how did you get question 9 in bus maths as E shouldnt it be D
I have a question regarding Q9 of Core -It's because the consumption was worded in reverse to normal... Rather than being in the number of litres you use per kilometre, it was the number of kilometres traveled per litre of fuel. Therefore as the weight increases, the number of kilometres travelled per litre is reduced.
I did the equation and got -0.005, however, surely fuel consumption plotted against the weight of a car would be a positive slope?
E.g. wouldn't fuel consumption go up as the car for heavier and vice versa?
Thus, I gave D as the answer instead of B... what do you guys think?
can someone explain why q7 in graphs and relations is B. Some of the other options seem correctSo it's which one is actually, completely true.
Hi, im not sure that question 7 in networks is correct. All four graphs do not satisfy the equation of v+f-e=2 which suggests that they are not planar therefore the answer is AYou have to redraw them first. When they are redrawn with no intersecting edges, they are all planar and all satisfy Euler's formula. The answer is E
In number patterns module, for question 9, does anyone get D as the answer like me? :)
Anyone know if there is any correlation between what's tested on exam 1 and what's tested on exam 2?
Ie. Is it likely for them to assess different parts of the course in exam 2 compared to exam 1, or roughly the same topics as exam 1?
Usually any common areas that aren't examined in exam 1 will be covered in exam 2. For example, there wasn't much about least squares regression on exam 1, so I would expect there to be questions on that in exam 2, with a three median regression being less likely as it was on exam 1.
Anyone aware of how many marks you can drop across both exams and still get 45 or above?General rule for a 45-50 is one mark lost is one study score.
ive dropped 3 on exam 1, but 2 of them was mis reading the question. If i get 60/60 on exam 2 what will i be looking at, if anyones aware?
Im on 98/100 on sacs near the top rank and in a extremely strong cohort
General rule for a 45-50 is one mark lost is one study score.The lower and upper medians give the gradient, they had the same y value, therefore a gradient of 0. Double check your median points?
It doesn't matter how you dropped them, if you dropped three then you're looking at around a 47/48 if you ace exam 2.
I have a question regarding Q9 of Core -
I did the equation and got -0.005, however, surely fuel consumption plotted against the weight of a car would be a positive slope?
E.g. wouldn't fuel consumption go up as the car for heavier and vice versa?
Thus, I gave D as the answer instead of B... what do you guys think?
I got 36/40 on the first exam, I am ranked top 20 in a very strong cohort,
if i get 56-59/60 on the second exam what SS am i likely to get?
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Top 20 is very vague, what was your sac average?
94% sac avg full marked everyone but trig which i completely screwed.56/60 would be about a 42-44, depending on cohort strength and overall state performance.
Note that it says fuel consumption, in km per litre of fuel. So a car that weights more would travel less km with one litre of fuel.
any way to boost my mood, did so many practice exams and only got 37/40. All three were the stupidest mistakes. Rank 2 in a extremely strong cohort, acing exam 2 is there any chance of a 48?48 is still a chance, especially in a strong cohort.
Anyone have exam2 answersThere's a new thread with the answers, in the same forum as this thread
could someone please post the answers for geometry and trigonometry, and matrices, as for some reason i cannot open the spoilersGeometry and Trigonometry
Question 7 in business I got E anyone else?How did you get those answers in networks?
Question 8 in networks I got D?
Question 9 in networks I got E?
I believe in question 4 of the core, Postcode is potentially numerical. They do try and order post codes numerically, but I could also see the argument for categorical as well. It's a toughie and I think we just have to wait to see the Assessor's report :)I agree the postcode one could go either way however I am much more convinced that it is categorical as it is less likely to be numerical as you cannot count or measure a postcode. It is the area you live in as defined by a number, therefore it is a numerical representation of a category.
Question 6 in the core is B because Q1 is 30 and Q2 is 50, therefore the IQR is 20. 20*1.5 = 30, 40+30 is 70, so just before 70 is the upper outlier fence. There are 3 values above 70 and therefore 3 outliers. It could ONLY be B or E.
Question 8 in the core is D, not E. It can't possibly be E, as stem and leaf plots are for numerical variables only.
I agree the postcode one could go either way however I am much more convinced that it is categorical as it is less likely to be numerical as you cannot count or measure a postcode. It is the area you live in as defined by a number, therefore it is a numerical representation of a category.
You are correct except it should be 50+30 which equals 80 not 40+30. The answer is A.
Sorry but you are incorrect again here, a back-to-back stemplot shows the relationship between two categorical variables and a numerical variable, check your bivariate notes.