VCE General & Further Maths Question Thread!

[Damoz.G]

In networks, when there are loops, it equals 1 from say A to A (point A has the loop), not 2? There was confusion with this at school. Thanks! 

A loop in an adjacency matrix is recorded as 1!

This.

The chief examiner published a note to all teachers last year, and our teachers made sure that we were made aware of this as well.

Loops count as 1 vertex in the matrix form.

[duhherro]

Also for 2012 Vcaa ex 1)

Module 4)
Q9) How would you know to pick between A or C?

And module 5)
Q9) Why can't you just do B E H? After B is done, then so can E be done, then H > finish? Because after B is done, that allows D to be completed then simply H can be done too?

[Cort]

Does anyone know how to solve the median here? I know it's a tad embarrassing, but isn't it supposed to be 500 (6th point) + 450 (7th point)/2 =475? The answer says it's 440 with 430+450.

[Damoz.G]

Also for 2012 Vcaa ex 1)

And module 5)
Q9) Why can't you just do B E H? After B is done, then so can E be done, then H > finish? Because after B is done, that allows D to be completed then simply H can be done too?

To achieve minimum number of days Lisa starts activity D after activity A is completed by John, then she does activity E. By the time activity E is completed, total number of days taken is 3+7+6=

Then 16+5=21. Therefore D is correct. 

Does anyone know how to solve the median here? I know it's a tad embarrassing, but isn't it supposed to be 500 (6th point) + 450 (7th point)/2 =475? The answer says it's 440 with 430+450.

Cort, you have to write out all the numbers in order from lowest to highest and then find the middle of the 6th and 7th values.

[Cort]

To achieve minimum number of days Lisa starts activity D after activity A is completed by John, then she does activity E. By the time activity E is completed, total number of days taken is 3+7+6=

Then 16+5=21. Therefore D is correct.
 

Cort, you have to write out all the numbers in order from lowest to highest and then find the middle of the 6th and 7th values.

Just read that I had to find the median OF the dependent variables, bloody oath.

Cheers mate.

[fieldjus]

Hi guys just wondering, if I ace both further maths exams do I get a 50?

Thanks

[Damoz.G]

Also for 2012 Vcaa ex 1)

Module 4)
Q9) How would you know to pick between A or C?

Sorry, couldn't answer your question before as I was on my phone.

I didn't study Business Maths as a module, but I think its that last value on the x-axis ( where Option A has a balance on the loan for a small amount, whereas in Option C, the balance is on 0 for 8 months.

Thats the only difference I can see.

[Damoz.G]

Hi guys just wondering, if I ace both further maths exams do I get a 50?

Thanks

It depends on your SAC Scores and Ranking, as well as how well the rest of the state goes. If they smash the exams like you do, then its not always possible if they have a better rank in their cohort and better SAC Scores.

But you will never know until everyone sits the Exam. So just do the best you can, and your results will show it.

[Zealous]

Q9) How would you know to pick between A or C?
 

Option C shows the balance being completely payed of after the 8th month.
But this is not the case.

If you do not make a payment, the balance of the loan is going to stay higher than if you made the payment, and interest will be added on top of a higher value (and therefore more interest will be added). Even though a double payment has been made, there's still an extra bit of interest which has been added by the month in which no payment was made. So the loan will keep dropping but will not be fully paid out at the end of the 8 month period - therefore A.

[unfamila]

If there's a box plot with an outlier; and the question asks for the 5 point summary, do i include it as the max/min value or the end of the whisker?
 

[Zealous]

If there's a box plot with an outlier; and the question asks for the 5 point summary, do i include it as the max/min value or the end of the whisker?
 

Yep, even though it may be an outlier, it is still part of the data, and can definitely be a minimum or maximum (or in between, depending on how many outliers there are).

[unfamila]

Thankyou
My exam coordinator said yesterday further starts at 9am. This is a mistake right? It starts at 3pm yeah?

[#J.Procrastinator]

Thankyou
My exam coordinator said yesterday further starts at 9am. This is a mistake right? It starts at 3pm yeah?

Yep further starts at 3pm. I have my psychology exam at 9 am tomorrow. Best of luck for further tomorrow!

[duhherro]

Thanks Damoz and Zealous, I'm still a bit confused on the network question with Lisa etc, how come she needs to do ABDH ? rather than just continue onwards with ADH then?

[jimmy22]

Hey,

for anyone who is doing networks,
is maximum reduction time -
- the maximum number of days an activity can be reduced by,
or the maximum number of days an activity can be reduced to ?

thanks