General Thoughts: General Mathematics (2 Viewers)

[littlemonster24]

Was anyone silly like me and forget to do a negative gradient on the back page? making the formula $=-4000n+60000

omg yessssss! DIEEEEEEEEEEEEEEEEEEEEEE ;'(

 

[catalyst91]

25 (d) ii) the interquartile range for females
8,9,11,11,12,15, - 11+11 divided by 2 = 11 16,18 ,18,18,20,21,27,34 - 20+21 divided by 2 = 20.5

Interquartile ranger = upper - lower
= 20.5 - 11
9.5
Did anyone else get this?

I got 9
Median = 17 (so then there's 7 scores on either side)
Lower quartile = 11 (Middle of lower than median scores is 11 with 3 scores on either side)
Upper quartile = 20 (Middle of upper scores from median is 20 with 3 scores on either side)

 

[jessxxxr]

kiddo, you do know for 12 that you had to flip the equation on one side ( the right side) then cross multiple. Thus the answer was D.

it was A lol...

 

[Effekt]

kiddo, you do know for 12 that you had to flip the equation on one side ( the right side) then cross multiple. Thus the answer was D.

There was a question almost exactly the same as this in last years paper, the answer is A here is my working

 

[smartalec]

I got 9
Median = 17 (so then there's 7 scores on either side)
Lower quartile = 11 (Middle of lower than median scores is 11 with 3 scores on either side)
Upper quartile = 20 (Middle of upper scores from median is 20 with 3 scores on either side)

+1

 

[engie_benji]

yay i got 9 too

 

[miss_forgettful]

financial expectation using the 2 spinners, i more than likely got it wrong since i got -$1.50

I got that as well, I'm pretty sure it is correct.

 

[JimmyMack]

What did anyone get for Q27 bi, the one about the longitude and latitude of Rabaul?

 

[engie_benji]

omg yessssss! DIEEEEEEEEEEEEEEEEEEEEEE ;'(

We're both lucky it was only a 1 marker then

 

[catalyst91]

What did anyone get for Q27 bi, the one about the longitude and latitude of Rabaul?

I got distance = 30,048km (Nearest Km)[Using the arc length formula)
And for b)ii) I got 4*South and 208*West

 

[JimmyMack]

yay i got 9 too

same, i think 9 was the correct answer as you dont include the median.

 

[littlemonster24]

We're both lucky it was only a 1 marker then

Yes but I've made way too many one-marker mistakes and they all add up! GAH I hate maths!

 

[jessxxxr]

What did anyone get for Q27 bi, the one about the longitude and latitude of Rabaul?

i got 4 degrees south, but degrees west i got wrong i think

 

[engie_benji]

What did anyone get for Q27 bi, the one about the longitude and latitude of Rabaul?

It was 4degSouth, 152degree's east, because, if jarvis island is 160deg West, And Rabaul was another 48deg west again, after it goes past 180deg west it starts turning into east because theirs only 180 degrees in both east and west, if that makes sense?

 

[Skriker]

I got distance = 30,048km (Nearest Km)[Using the arc length formula)
And for b)ii) I got 4*South and 208*West

YAYAYE, got 2 marks for the distance than

 

[JimmyMack]

I got distance = 30,048km (Nearest Km)[Using the arc length formula)
And for b)ii) I got 4*South and 208*West

isnt the maximum longitude 180 degree, east or west? For that question i calculate 208 West would move into East territory if u know wat i mean. So i did (208 - 180) and then minus that off 180 degree east, which gave me 152 degree east.

 

[minzoir]

These are the answers that I got. All the teachers in the math staffroom did the paper afterwards also and they got the exact same:
1) D
2) A
3) B
4) C
5) B
6) D
7) B
8) D
9) C
10) C
11) B
12) A
13) A
14) B
15) B
16) D
17) C
18) A
19) D
20) C
21) A
22) A

I wrote down my answers to the questions as I went through so my teacher could mark it afterwards. Ended up with a 95 raw, I hope that aligns into a band 6 (someone was saying that 6 is usually 95+ ).

 

[jessxxxr]

isnt the maximum longitude 180 degree, east or west? For that question i calculate 208 West would move into East territory if u know wat i mean. So i did (208 - 180) and then minus that off 180 degree east, which gave me 152 degree east.

yeahhh i had a feeling i got that one wrong, hopefully i still get 1/2

 

[catalyst91]

isnt the maximum longitude 180 degree, east or west? For that question i calculate 208 West would move into East territory if u know wat i mean. So i did (208 - 180) and then minus that off 180 degree east, which gave me 152 degree east.

Fml

 

[engie_benji]

isnt the maximum longitude 180 degree, east or west? For that question i calculate 208 West would move into East territory if u know wat i mean. So i did (208 - 180) and then minus that off 180 degree east, which gave me 152 degree east.

Exactly what i just said