What percentage of people get each ATAR mark? (1 Viewer)

Beyblader

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Hi guys
How do you calculate the statistical distribution of each ATAR mark?
I've heard that only 1 in 1400 people get 99.95 - is that correct?

so what % of people get 99.95, 99.94, 99.93, 99.5 etc?

is there a formula I can use to calculate it?
so what % of people get 99.00?

thanks
 

idkkdi

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Hi guys
How do you calculate the statistical distribution of each ATAR mark?
I've heard that only 1 in 1400 people get 99.95 - is that correct?

so what % of people get 99.95, 99.94, 99.93, 99.5 etc?

is there a formula I can use to calculate it?
so what % of people get 99.00?

thanks
it's the percentile for all ATAR kids in a yr group, including those who do not complete the ATAR.

UAC reports this stuff, a little digging in their reports will get you there.
 

Beyblader

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it's the percentile for all ATAR kids in a yr group, including those who do not complete the ATAR.

UAC reports this stuff, a little digging in their reports will get you there.
Thanks for that tip. So I've just looked at the UAC website and it says"

"The ATAR is a rank, not a mark.
The Australian Tertiary Admission Rank (ATAR) is a number between 0.00 and 99.95 that indicates a student’s position relative to all the students in their age group (ie all 16 to 20 year olds in NSW). So, an ATAR of 80.00 means that you are 20 per cent from the top of your age group (not your Year 12 group).

Universities use the ATAR to help them select students for their courses and admission to most tertiary courses is based on your selection rank (your ATAR + any applicable adjustments). Most universities also use other criteria when selecting students (eg a personal statement, a questionnaire, a portfolio of work, an audition, an interview or a test).

The average ATAR is usually around 70.00.

If every school student went on to achieve an ATAR, the average ATAR would be 50.00. But because some students leave school early and the ones who stay on to receive an ATAR are a smaller, more academically able group, the average ATAR is higher."

so i guess that means 1 in 2000 of people that start get 99.95, allowing for drop outs then a figure of around 1 in 1200 to 1 in 1400 of kids that don't drop out sounds about right i.e you have to be amazing to get 99.95.

I wonder what percentage of people that don't quit get 90.00, I'm guessing its around 15% then?
and I'd guess around 2-3% get 99.00 or more?
 

Qeru

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Thanks for that tip. So I've just looked at the UAC website and it says"

"The ATAR is a rank, not a mark.
The Australian Tertiary Admission Rank (ATAR) is a number between 0.00 and 99.95 that indicates a student’s position relative to all the students in their age group (ie all 16 to 20 year olds in NSW). So, an ATAR of 80.00 means that you are 20 per cent from the top of your age group (not your Year 12 group).

Universities use the ATAR to help them select students for their courses and admission to most tertiary courses is based on your selection rank (your ATAR + any applicable adjustments). Most universities also use other criteria when selecting students (eg a personal statement, a questionnaire, a portfolio of work, an audition, an interview or a test).

The average ATAR is usually around 70.00.

If every school student went on to achieve an ATAR, the average ATAR would be 50.00. But because some students leave school early and the ones who stay on to receive an ATAR are a smaller, more academically able group, the average ATAR is higher."

so i guess that means 1 in 2000 of people that start get 99.95, allowing for drop outs then a figure of around 1 in 1200 to 1 in 1400 of kids that don't drop out sounds about right i.e you have to be amazing to get 99.95.

I wonder what percentage of people that don't quit get 90.00, I'm guessing its around 15% then?
and I'd guess around 2-3% get 99.00 or more?
From here https://www.uac.edu.au/assets/documents/scaling-reports/preliminary-report-2020-nsw-hsc.pdf 17% got 90 or above (in 2020), which is roughly 9000 people.
 

Qeru

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Hi guys
How do you calculate the statistical distribution of each ATAR mark?
I've heard that only 1 in 1400 people get 99.95 - is that correct?

so what % of people get 99.95, 99.94, 99.93, 99.5 etc?

is there a formula I can use to calculate it?
so what % of people get 99.00?

thanks
One more thing to note is the atar comes in 0.05 increments so a 99.94 is not possible. You can check table A7 in the link above for every increment
 

Beyblader

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One more thing to note is the atar comes in 0.05 increments so a 99.94 is not possible. You can check table A7 in the link above for every increment
thanks for that link!

so it says:
- average ATAR is 70.15
- 1.7% got over 99.00 which means 99 is a bit tougher than i thought
- 10.2% got over 94.00 which seems a lot easier than i thought

theres a world of difference between 94 and 99 then
 

Qeru

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thanks for that link!

so it says:
- average ATAR is 70.15
- 1.7% got over 99.00 which means 99 is a bit tougher than i thought
- 10.2% got over 94.00 which seems a lot easier than i thought

theres a world of difference between 94 and 99 then
Yep the HSC is normally distributed If I recall correctly.
 

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