That's true if your school has a large cohort each year that consistently performs around the same level. For example, say last year got around 20 people out of 80 in English (Adv.) that achieved Band 6 - this means that in order to increase your chances of a Band 6 in English (which as such increases your ATAR estimate), you should be in the top 20 in your cohort as this was the amount of people that achieved this mark last year.I'm a little confused with why for a good atar estimate you need to know how much b6's per sub last year?
Can someone fill me in on why this is?
Thanks in advance