VCE General & Further Maths Question Thread!

[anne198]

it is possible to have a non linear relationship between two variables but still have the relationship be strong?

[galaxy21]

it is possible to have a non linear relationship between two variables but still have the relationship be strong?

It would be possible, but I assume we wouldn't need to know this for further, as we are studying linear relationships. The only time that non-linear associations are involved in the course is when r is less than 25 (or greater than -25), when we are working with residual plots to determine whether the relationship is linear or non-linear based on residual placement, and for transformations.

[S_R_K]

It would be possible, but I assume we wouldn't need to know this for further, as we are studying linear relationships. The only time that non-linear associations are involved in the course is when r is less than 25 (or greater than -25), when we are working with residual plots to determine whether the relationship is linear or non-linear based on residual placement, and for transformations.

I believe you are expected know how to judge the strength of the linearised form of a non-linear relationship – eg. determine the correlation coefficient of bivariate data after a log / reciprocal / squared transformation has been applied.

[galaxy21]

I believe you are expected know how to judge the strength of the linearised form of a non-linear relationship – eg. determine the correlation coefficient of bivariate data after a log / reciprocal / squared transformation has been applied.

Yes, but that is after the data has been linearised with the transformation, so I wouldn't say it is judging the strength of non-linear data, as it is not the original data that is being judged.

[S_R_K]

Yes, but that is after the data has been linearised with the transformation, so I wouldn't say it is judging the strength of non-linear data, as it is not the original data that is being judged.

Yes, I agree. Just trying to clarify the issue.

[galaxy21]

Yes, I agree. Just trying to clarify the issue.

lol sorry!

[Omarrr_2163]

How would you do this? 

[Lear]

Genuinely trial and error for me!

[spursy]

which one would be right?

[Omarrr_2163]

I'd say C

[jol122333]

Maybe a silly question but are you allowed to write outside the lines on exam 2?

[Aaron]

Maybe a silly question but are you allowed to write outside the lines on exam 2?

Outside the lines as in page margins or the lines given underneath the question?

If margins, try not to as you risk it not being included in the scan for assessors to mark. If you have to, use additional space provided / on the page within the page margins.

[galaxy21]

Maybe a silly question but are you allowed to write outside the lines on exam 2?

Do you mean outside the border of the page? Like the yellow area on the image attached?

If so, I would say no. I have heard a few people talking about it over the forums, and while some suggest that you might be able to get away with it, it's probably better to be safe. My teacher mentioned that you can write on one of the blank pages if you very clearly label the question that it is from at the actual question and at the blank page, but try to fit it on the main page if you can

[VeryJuicyLemon]

Do you mean outside the border of the page? Like the yellow area on the image attached?

pretty sure you don't, cause if its only the black border...you really can't even write it therefore making the text meaningless.

[xdmemeguy]

Hey guys I need help with this VCAA question form 2015 exam 2.

The answer says the modal inerval is 70-75, but shouldnt it be 70-74 becaues its a histogram, and like 75+ are part of the following intervals?

Thanks