2005 HSC Answers (1 Viewer)

Brookie7

Member
Joined
Mar 23, 2005
Messages
43
Gender
Female
HSC
2005
no. if you worked it out over 60 games it would work out like this:
ii) 3/5x60=36
36x4= 144

1/5x60=12
12x$0= 0

1/5x60=12
12x (-8)= -96

144-96=$40

Then you do the same for iii and its $8 less... thats if the question is asking for all of the 60games.. but if its just the one game. then im wrong. but its hard to tell but the question
 

danieljarvis

Member
Joined
Sep 7, 2005
Messages
429
Location
at the maths debate
Gender
Male
HSC
2005
ahh i see what your getting at now.

im not sure, ive never seen a question worked out like that on financial expectation, but it seems to be logical.

in my view a financial expectation is the expectation of ONE game. but i cant seem to find a definition anywhere in my books, so im probably wrong
 

Brookie7

Member
Joined
Mar 23, 2005
Messages
43
Gender
Female
HSC
2005
ha! who knows. im starting not to care anymore. i just wanna get into uni, and one day be a teacher :) you?
 

danieljarvis

Member
Joined
Sep 7, 2005
Messages
429
Location
at the maths debate
Gender
Male
HSC
2005
your right, what are we doing its 20 past 12 night after our last maths exam and we're debating over a fucking question?!?! ridiculous!

yeah get to uni, depending on marks, id love something in sports ( my life ) , human movemen science course is my number 1.. but i dont think ill get that.. also want to do an atmospheric science course! but, yeah being a teacher would be cool.. ( pdhpe of course :p )

wat teaching course u wana do>?
 

rego2

Member
Joined
Aug 1, 2005
Messages
74
Gender
Male
HSC
2005
danieljarvis said:
yeh that actual hsc mark, i dont believe they can do that.. my maths teacher told me if my marks were in the mid 90s that they would stay that way. so im guna believe him for my own sanity :)
umm i thats odd.. would anyone back up his theory?

lets say i score average 70% in my assignment and 50% in my trials and then got 93% in the HSC exam.
Those that mean my mark would stay at 93%? or would it be add together with all the other mark then average it??
 

Brookie7

Member
Joined
Mar 23, 2005
Messages
43
Gender
Female
HSC
2005
i was just about to write the same thing about the time, and its so so lame that im sitting at the computer right now talking about maths, when im meant to of finished it forever. most NORMAL peopel would be celbrating hahaha.
i wanna do primary teaching at wollongong. what uni's did u apply for??
 

danieljarvis

Member
Joined
Sep 7, 2005
Messages
429
Location
at the maths debate
Gender
Male
HSC
2005
rego2 said:
umm i thats odd.. would anyone back up his theory?

lets say i score average 70% in my assignment and 50% in my trials and then got 93% in the HSC exam.
Those that mean my mark would stay at 93%? or would it be add together with all the other mark then average it??
sorry i should have specified.

he meant the mid 90's all year. assessment mark was 95 i think. so yeah, its not just one good exam can be a quick fix to an average year.

brooke - lol, yeah on that note im guna go to bed :) ill make up for my lack of celebration this weekend! i applied to UTS (kuringai) , Macquarie, UWS and Canberra :) in ranked order.
goodnight and goodluck with the rest of your exams and uni!
 

Brookie7

Member
Joined
Mar 23, 2005
Messages
43
Gender
Female
HSC
2005
yeah it was nice to chat. and same goes to you, GOODLUCK. i was kinda sercretly hoping you were gunna say wollongong. but anyways. have a drink and celebrate for me too :)
goodnight
 

billsta05

New Member
Joined
Oct 24, 2005
Messages
5
Gender
Male
HSC
2005
my answer is as follows.

there is a 3/5 (0.6) chance of winning $4,
so 0.6 X $4 = $2.40

there is a 1/5 (0.2) chance of winning $0,
so 0.2 X $0 = $0

there is a 1/5 (0.2) chance of losing $8,
so 0.2 X -8 = -$1.60

Now add them up, 2.40 + 0 - 1.60 = $0.80

Then you times the financial expectation ($0.80) by the amount of times (60) and you get = $48

(I think)
 

Jayphen

super disco breakin'
Joined
Aug 28, 2004
Messages
362
Location
Carlingford
Gender
Male
HSC
2005
billsta05 said:
my answer is as follows.

there is a 3/5 (0.6) chance of winning $4,
so 0.6 X $4 = $2.40

there is a 1/5 (0.2) chance of winning $0,
so 0.2 X $0 = $0

there is a 1/5 (0.2) chance of losing $8,
so 0.2 X -8 = -$1.60

Now add them up, 2.40 + 0 - 1.60 = $0.80

Then you times the financial expectation ($0.80) by the amount of times (60) and you get = $48

(I think)
I see what you're doing..

But the question asks for the financial expectation of the game. If it asked for the financial expectation of 60 attempts at the game, then your answer would be right - but the financial expectation of the game itself is $0.80
 

Brookie7

Member
Joined
Mar 23, 2005
Messages
43
Gender
Female
HSC
2005
yeah i think im starting to agree. but it was a crappy question cause it got me lol
 

Rnb Producer

New Member
Joined
Oct 25, 2005
Messages
3
Location
Evanz High Skool, Blacktown
Gender
Male
HSC
2005
hahahahah geeeez, this site is hektik, who ever put up those answers then thanx, i just compared them with what i got and fakkkkkkkin im a stupid kent.....

i got 7% in the trials hahahaha i dont expect to get much more then that in this exam.....

sexy smart chicks add my msn adress ;) i neeed help wif some tests babes ;) cummmon broooooooooooooo, this site goes harddddddddddd, talk to use later..........
 

Smartie87

Member
Joined
Sep 16, 2005
Messages
119
Gender
Female
HSC
2005
Casmira said:
what about low 90s whats that get aligned to normally?

100% in general maths gets scaled down to 88 or 89 afaik :(
Nooooooo! u can still get a UAI of 100 doing general!!!! If u do well in any subject, it doesnt matter!! It only effects the people who only go average. A chick at my school did general and got a UAI of 98! Your HSC exam mark NEVER gets changed.... u keep that. The ONLY thing that gets changed is your school assessment. and im 100% sure on that.... they cant change ur exam mark from 95 to 89 cuz lots of ppl did good
 
Joined
Nov 4, 2004
Messages
3,550
Location
Sydney
Gender
Male
HSC
2005
shit I didnt times 0.80 or 0.67 by 48, i'll probably only get 1 mark for it then
 

GiantSloth

New Member
Joined
Oct 14, 2005
Messages
16
Gender
Male
HSC
2005
hey what r the answers for

Question 25bi when u had to use pythagoras to show that ABC is a right angled triangle.

Question 27ci when u had to explain y the angle was 110


Also with question 25ai is entertainmant $624 or $576.
 

benno69

New Member
Joined
Oct 19, 2005
Messages
10
Gender
Male
HSC
2008
the entertainment one was $576; $48 times 12 (per month)
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top