General Thoughts: Mathematics (3 Viewers)

[churnitout]

did it alll but the part on equal rate of increase and decrease....which i screwed up on

 

[churnitout]

we're never alone in the tough ones....how was the last part of q16?

 

[Queenroot]

What did you guys get for the probability of Pat winning the game?

A really big fraction. Probably wrong.

 

[lolwot]

What did you guys get for the probability of Pat winning the game?

1 hahahahah

 

[Queenroot]

i wrote he will never get 1/6 twice...srsly wtf is wrong with me

Lol. Don't worry. I just did what I would do with "at least one". Lol, but I think you were supposed to use series...

 

[ocatal]

A really big fraction. Probably wrong.

I got a big fraction as well.

 

[hjed]

I got a big fraction as well.

I did a limiting sum and got 30 ... I knew that was wrong though so I put 1/6. The correct answer is probably slightly more than half, as they both have the same chance of winning on their go, he just goes first.

 

[mahoo_mk]

I did a limiting sum and got 30 ... I knew that was wrong though so I put 1/6. The correct answer is probably slightly more than half, as they both have the same chance of winning on their go, he just goes first.

i kept getting 1 when doing limiting sum so i used logic and said half because #yolo

 

[spammer]

What did you guys get for the probability of Pat winning the game?

Let's go with 6/11

 

[blinx96]

I thought I was too stupid to not get the r question. At least now I know other people struggled with it too.

lmao the r question was piss easy ahahah
but that shouldve been in the Q 16

 

[panda15]

That probability question has come up in a past 4U exam, so good effort to anyone who got it out.

 

[vw95]

those people saying it was fkin easy either go to James Ruse, Baulkham Hills (or some selective school that is in the top 20) or are either trolling and trying to make us feel bad... tbh i got 94 for the CSSA trial and the trial was a lot easier than the 2 unit exam we just did !!
if a lot of people found it hard/harder (i did... compared to every other paper i had looked at, and btw i do 3 unit :/ ) then they will scale it higher

Don't worry, the reaction of most of us leaving the exam at Baulko: "WHAT THE FUCK, THAT WAS HARD."

 

[Alex Griffiths]

I think I did pretty poorly. I felt intimidated because Question 16 wasn't necessarily the hardest and I felt it was just a bit harder in general. Think I got like 70/100.

Don't worry, we're in the same boat!

 

[Menomaths]

That probability question has come up in a past 4U exam, so good effort to anyone who got it out.

srs?

 

[panda15]

srs?

1997 paper. Very similar, slightly harder. I thought it was a great probability question, and I definitely didn't expect to see it in a 2U paper.

 

[bedpotato]

1997 paper. Very similar, slightly harder. I thought it was a great probability question, and I definitely didn't expect to see it in a 2U paper.

I've seen this type of question in a 2U trial before.
Yet I still managed to screw it up.

 

[churnitout]

i got 71/2 thousnad and something?

 

[jordan jacobson]

For the probability question in said it was 1/2 + 1/36 because they have an equal chance of winning but pat goes first. Not sure if right

 

[lolwot]

Can someone do working for the probability one? Just wondering

 

[panda15]

I've seen this type of question in a 2U trial before.
Yet I still managed to screw it up.

It's definitely 2U material, but it takes a lot of insight to recognize that it's a GP and to find the limiting sum.