MedVision ad

Answers to General Paper (2 Viewers)

Joined
Jul 29, 2004
Messages
105
Location
Blue mountains
Gender
Male
HSC
2004
Q 28 c) ii)

shouldnt the answer to this questiuon be (170, 70)?

i did it by using the midpoint formula (thankyou yr 10) where MP = (x1 + x2)/2 , (y1 + y2)/2

how could it be (170, 55)? isnt that below point A?

i dont understand.
 

timrie6

Member
Joined
Feb 29, 2004
Messages
702
Gender
Undisclosed
HSC
N/A
Albert K. Holic said:
shouldnt the answer to this questiuon be (170, 70)?

i did it by using the midpoint formula (thankyou yr 10) where MP = (x1 + x2)/2 , (y1 + y2)/2

how could it be (170, 55)? isnt that below point A?

i dont understand.
yeah i second that
i got 170, 60 though
 

cro_angel

<3<3<3
Joined
Nov 7, 2003
Messages
3,309
Location
Somewhere over the rainbow
Gender
Female
HSC
2004
Albert K. Holic said:
shouldnt the answer to this questiuon be (170, 70)?

i did it by using the midpoint formula (thankyou yr 10) where MP = (x1 + x2)/2 , (y1 + y2)/2

how could it be (170, 55)? isnt that below point A?

i dont understand.
its 170, 58 because you need to find the average of the three middle section points (like it was done in the first 1/3 of the graph where A isnt the middle point)
u should have been following how to find the median regression line which we learned in year 12 rather than that :p
 

PC

Member
Joined
Aug 19, 2004
Messages
639
Location
Sydney
Gender
Undisclosed
HSC
N/A
The midpoint formula basically finds the average of two numbers, but here we need the median, which is not necessary the mean. List the x co-ordinates in order and take the middle one, then list the y co-ordinates in order and take the middle one.
 

cro_angel

<3<3<3
Joined
Nov 7, 2003
Messages
3,309
Location
Somewhere over the rainbow
Gender
Female
HSC
2004
haha so like the people who found the mean and got 58 and people who used that way got it right either way.. woo
wait.. does that mean u wont get a mark for working it out wrong
 

timrie6

Member
Joined
Feb 29, 2004
Messages
702
Gender
Undisclosed
HSC
N/A
Albert K. Holic said:
Sorry, should've read thru all the posts before shooting my mouth off. bad luck timrie, looks like we were wrong.
damn. oh well! its over now, no more mathttsssss
now, i think everyone should rep PC
 

kylie_robbo

Member
Joined
Nov 26, 2003
Messages
237
PC said:
Q2: The vertical axis is going up by 5 at a time, while the horizontal axis is only going up by one at a time. So if you just look at the "squares" you think the slope is 1, but it's really 5.

It's a really nasty question. It looks really easy but you had to read the question carefully.

Q22: A$1 = €0.62
So A$25 = 25 x 0.62 = €15.50

Then V$1 = €1.44
So €15.50 = 15.50 ÷ 1.44 = V$10.76

So A$25 = V$10.76 (less transaction fees of course)

Shouldn't that be 15.50 Euro = 15.50 x 1.44 = Vistabella $ ?
Because the V$ is worth more than the Euro rather than less...

If it wasn't meant to be times rather than divide, can someone please explain further?
 

Stilla

NNGHHH
Joined
Oct 19, 2004
Messages
144
Gender
Male
HSC
2004
Well i would have no idea so take what i said with a grain of salt, but it was a damn easy paper, i managed a 98 and i didn't study for a minute so i think a band 6 might be 95+
 

timrie6

Member
Joined
Feb 29, 2004
Messages
702
Gender
Undisclosed
HSC
N/A
but doesnt band 6 usually begin around 85-88 anyway?
argh ive got my hopes up now
 

Stilla

NNGHHH
Joined
Oct 19, 2004
Messages
144
Gender
Male
HSC
2004
KylieR, you're right about it being worth more which is why it's divided.
 

Stilla

NNGHHH
Joined
Oct 19, 2004
Messages
144
Gender
Male
HSC
2004
It all depends on scaling, band 6 is not a raw mark, it's a percentile of people. So if a shitload of people get 90 then there's no chance it will be a band 6.
 

Nara

New Member
Joined
Mar 28, 2004
Messages
13
Location
in australia
Gender
Female
HSC
2004
Omg well lets just say i failed that exam and i even studied for it. im so bad at maths im just glad its over!!
 

timrie6

Member
Joined
Feb 29, 2004
Messages
702
Gender
Undisclosed
HSC
N/A
I put my result (91) on SAM and it said it was in the top 2.8% of the state
 

Stilla

NNGHHH
Joined
Oct 19, 2004
Messages
144
Gender
Male
HSC
2004
How the hell would SAM know abot this years exam, which was MUCH easier than last years papers.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 2)

Top