Not a problem, happy to help.
Hmmm, the graph could work but personally I think it's just wasted effort and precious time cuz the markers would just glance at it, then just keep reading your response, then make up their mind on your mark. Also you might end up spending too much time trying to explain said graph and not quite answering the question. [ask what your teacher thinks, they would probs know more than me
]
Also don't waste your time trying to remember a whole heap of stats [or trying to find the absolute latest ones], the syllabus doesn't require you to do so - they're asking for the trends mostly. As long as your stats don't contradict what your saying and seem plausible you should be fine - like if you don't know that the average life expectancy of a female living in Australia is 83.5 years as long as you write something close to the figure eg "just over 83 years/approximately 84 years/...etc" ..."TSI and Aboriginal suffer *inequities in health/*...something-something...* as statistics/epidemiology shows their average life expectancy is 15-20 years below that of *.... ....*"
Regular revision is the key to success in all subjects!! Past HSC papers give you the best practice. Trial papers eg Catholic/Independent papers can often give quite odd M/C questions, I remember many an in-class debate about the correct answer. Also READ the QUESTION and ANSWERS CAREFULLY!! Trick questions/easy answer - moment lapse in judgement/accidentally circle the wrong letter but knew the write answer[enuf said!].
People also often change correct answers to incorrect answers when they go over the MC questions, often your first hunch is correct, only change it if YOU'RE ABSOLUTELY SURE!
Just so you know, the guy who topped the state in '06 didn't get 100% in his MC and HSC markers have debated over the correct answer to MC questions, so now they don't get to see the answers to MC sections.
One more bit of advice, if you can get a hold of
STUDENT EXEMPLAR ANSWERS, this will give an absolutely amazing insight into how top students answered questions and how they structured it and how markers mark questions. [there's a box with a comment about what was good/excellent about response, why it got in the range that it.] I think they also give band 3/4 answers, so you can compare B3/4 responses with B5/6 responses, and you'll gain an understanding of why they got into their respective bands.
Woah, long response! Hope it helps.