**HL Maths P2 Before/After

ChemHickey

Sure, seeing as we have paper 1 done...

FaoiSin

Nice paper. Surprised they didn't ask us to do anything but draw Scatter Plots and Histograms but it was a nice flashback to my Junior Cert days.

Random_Person

YeaaahFaoiSin wrote: »

Nice paper. Surprised they didn't ask us to do anything but draw Scatter Plots and Histograms but it was a nice flashback to my Junior Cert days.

..what? Either you're joking or I've missed paper 2.. :pac:

reznov

Guys what did you get for the 6th question, (b) part?
I just discussed the biases which can occur through simple random sampling and calculated the probability of them occurring

Definite A1.

FaoiSin

reznov wrote: »

Guys what did you get for the 6th question, (b) part?
I just discussed the biases which can occur through simple random sampling and calculated the probability of them occurring

Definite A1.

Exactly what I did. Also mentioned the importance of the clinometer in sampling for bonus points!

Random_Person

reznov wrote: »

Guys what did you get for the 6th question, (b) part?
I just discussed the biases which can occur through simple random sampling and calculated the probability of them occurring

Definite A1.

ChemHickey

reznov wrote: »

Guys what did you get for the 6th question, (b) part?
I just discussed the biases which can occur through simple random sampling and calculated the probability of them occurring

Definite A1.

Well, I don't know what exam you did, but my 6B was a cut from the JC.... jeez like. No stats at all. Reznov=Definite A2

reznov

YeaaahFaoiSin wrote: »

Exactly what I did. Also mentioned the importance of the clinometer in sampling for bonus points!

Ah crap I didn't emphasise the clinometer. Think I'll lose many marks?

Canard

Definitely. They really like their clinometers.

(I've never seen one in my life though)

mcpaddington

I hope a nice drawing question will come up. Are you guys gonna start with the last two questions worth 50% or at question 1?

reznov

I think that project Maths was a pleasant change from the mundane and repetitive algebraic equations in paper one. Man I wish I could go out and strata sample the population right now and maybe even find the mode of a categorical variable under inspection.

reznov

mcpaddington wrote: »

I hope a nice drawing question will come up. Are you guys gonna start with the last two questions worth 50% or at question 1?

The paper was yesterday.
Sorry bro.

FaoiSin

mcpaddington wrote: »

I hope a nice drawing question will come up. Are you guys gonna start with the last two questions worth 50% or at question 1?

I think the 2 worth 50 tbh. I ran out of time in the mocks on them. Might do the theorem first if it comes up as it'll be fresh in my head.

mcpaddington

reznov wrote: »

mcpaddington wrote: »

I hope a nice drawing question will come up. Are you guys gonna start with the last two questions worth 50% or at question 1?

The paper was yesterday.
Sorry bro.

Oh yea............I just forgot.

mcpaddington

YeaaahFaoiSin wrote: »

mcpaddington wrote: »

I hope a nice drawing question will come up. Are you guys gonna start with the last two questions worth 50% or at question 1?

I think the 2 worth 50 tbh. I ran out of time in the mocks on them. Might do the theorem first if it comes up as it'll be fresh in my head.

Yea man exact same happened to me. Only got up to the first part of the last question done so I lost around 20% of the total marks.

lorrieq

mcpaddington wrote: »

I hope a nice drawing question will come up. Are you guys gonna start with the last two questions worth 50% or at question 1?

Woah ****! Never knew that.

Canard

Not even going near Q8 til the very end. I just cant do them. I got 6/75 in my mock and didnt even deserve those 6. So worrying...

FaoiSin

I got 4/75 in one on my mock and spent about an hour on it :P

Wanchor

Geometry

earwax_man

Am I the only one who finds project maths better than the old course? I'm beginning to feel crazy :P

mcpaddington

earwax_man wrote: »

Am I the only one who finds project maths better than the old course? I'm beginning to feel crazy :P

I love it too. It's so much easier than paper 1 I think and I like the kind of general knowledge aspect to it too. The only parts I don't like is when they ask you to explain something, I'm never sure how much to write.

DepoProvera

So there's literally no choice in the paper bar 6A and B, correct?

mcpaddington

DepoProvera wrote: »

So there's literally no choice in the paper bar 6A and B, correct?

There may also be a 9A or 9B like on the 2010 project Maths.

Stalin and rugby

All the technical graphics rats are going to do real well in this project maths yoke

FaoiSin

There's no 9A or 9B for us. 1-6 Short Questions and 7-8 Long

NoHarm1994

It better be a nice paper after yesterdays disaster :P

DepoProvera

For my mock there was a question to draw two graphs side by side and I had only space to draw one because I scaled it wrongly.. Just wrote below my one graph that I didn't need to draw the other as you can see the information from the graph.. full marks hahaha

Incompetent

I'm so worried! I need to do well in this paper, but I'm so much worse on it than paper 1. What would the essentials be? I know there's loadsa proofs, but I need to get the most marks I can in 2 days . Is focusing on geometry and trig worth it, as you can't really bull your way through it?

Emz93

Does anybody know if Geometry can come up as one of the long questions? (7/8) Generally it seems, statistics, trig and bits of probability is what comes up in the long qs but better be safe than sorry! Planning on just learning the theorems off perfectly so 25 marks in the bag for Q6A!

Stalin and rugby

I reckon we all chill the fcuk out. Let come what comes

DepoProvera

Emz93 wrote: »

Does anybody know if Geometry can come up as one of the long questions? (7/8) Generally it seems, statistics, trig and bits of probability is what comes up in the long qs but better be safe than sorry! Planning on just learning the theorems off perfectly so 25 marks in the bag for Q6A!

Yer man on the radio said Geometry had to be confined to question 6.

FaoiSin

Emz93 wrote: »

Does anybody know if Geometry can come up as one of the long questions? (7/8) Generally it seems, statistics, trig and bits of probability is what comes up in the long qs but better be safe than sorry! Planning on just learning the theorems off perfectly so 25 marks in the bag for Q6A!

I believe Geometry is only examinable in question 6 but some of the basics might be necessary for the Trig in 7 or 8.

cocopopsxx

I can't do trig AT ALL- those 3D shapes and pyramids- they seem so impossible! I just can't see angles. even in the old course I avoided it as much as I could, loved the probability though but we had choice back then! I wish they'd just put period and range and all that easy trig on q7/8 too

mcpaddington

So are these the only things that we have to be able to prove?
Theorem 11, 12 and 13.
Trig formulas 1-7 and 9.

emmamurphy233

mcpaddington wrote: »

So are these the only things that we have to be able to prove?
Theorem 11, 12 and 13.
Trig formulas 1-7 and 9.

Also proof by contradiction! It has been asked as 6A twice I think, although one was just a sample paper.

cocopopsxx

Are solutions to SEC sample papers available online??

Hayezer

Anyone know if I should bother going over trigonometric equations, things like double angles,compound angles, all that stuff?

Blink182rock

http://www.projectmaths.ie/exam-papers/sample.asp ......:)

Blink182rock

cocopopsxx wrote: »

Are solutions to SEC sample papers available online??

oppss,

http://www.projectmaths.ie/exam-papers/sample.asp .....:)

mcpaddington

Remember to know how to find the standard deviations using the calculator and etc people!

pajero12

Hayezer wrote: »

Anyone know if I should bother going over trigonometric equations, things like double angles,compound angles, all that stuff?

Yes Definitely!

paddyhes

is there anywhere online where you can find a list of the definitions you need to know?
like ''random sampling'' ''cluster sampling'' and all that other stuff?

cocopopsxx

Blink182rock wrote: »

cocopopsxx wrote: »

Are solutions to SEC sample papers available online??

oppss,

http://www.projectmaths.ie/exam-papers/sample.asp .....:)

Thanks a million

reznov

I bought a pocket clinometer.


You jelly?









:cool:

K_1

DepoProvera wrote: »

Yer man on the radio said Geometry had to be confined to question 6.

The theorems and cuts are, but a knowledge of all the geometry stuff will be required for the long trig question.

DepoProvera

Could an example of proof by contradiction be from paper 1? To prove a rational function has no turning points: differentiate, let f'(x)=0 and it gives a false statement... Or does it have to be from Paper 2?

raindodger

What are ye using for practice? You can only do the SEC paper so many times and I don't trust the sample papers in the test papers.

K_1

raindodger wrote: »

What are ye using for practice? You can only do the SEC paper so many times and I don't trust the sample papers in the test papers.

Old course paper 2's.

finality

raindodger wrote: »

What are ye using for practice? You can only do the SEC paper so many times and I don't trust the sample papers in the test papers.

Going back over the revision exercises in the book.

Speaking of the revision exercises, can anyone help with this question?

A bag contains 4 red counters and 6 green counters. Four counters are drawn at random from the bag (and not replaced). Calculate the probability that
(iv) at least two green counters are drawn, given that at least one of each colour is drawn.

I just can not get the answer in the back of the book (it's 85/97).

edit: never mind, I just got it, was just leaving out the last step

leaveiton

I was listening to Countdown to 606 a few nights ago and they guy said something about being able to do the line of best fit on your calculator. Anyone know how to do this? I'm terrible at seeing it by eye.

ehshup

on my calculator, there is an option for a, b and r (the correlation coefficient). For the line of best fit, select a, which gives you the constant, and b, which gives you the x coefficient, i.e. if a = 3 and b = 7, the line of best fit is y = 7x + 3