# General Thoughts: Mathematics Extension 1 (2 Viewers)

#### vflaash

##### Member
i got 50 (without carry over errors) and 53 (with carry over errors), what would that align to? /70

High e3. 88ish

#### Zen2613

##### Member
If they were prepared they would have known that to get rid of odds you let x=-1 , pretty common textbook questions to multiply everything by x too, and yeah I can understand, considering I read somewhere that the median atar in some year was 69
How can the average atar be 69 ? I don't get it, the atar is a rank against everyone in the state, so shouldn't it be exactly 50 ?

#### Zen2613

##### Member
If they were prepared they would have known that to get rid of odds you let x=-1 , pretty common textbook questions to multiply everything by x too, and yeah I can understand, considering I read somewhere that the median atar in some year was 69
How can the average atar be 69 ? I don't get it, the atar is a rank against everyone in the state, so shouldn't it be exactly 50 ?

#### InteGrand

##### Well-Known Member
How can the average atar be 69 ? I don't get it, the atar is a rank against everyone in the state, so shouldn't it be exactly 50 ?
Does it have anything to do with <30 ATAR's not counting to the calculation of the median?

#### HecticSandWitch

##### 2007 fuccboi hustler king
Does it have anything to do with <30 ATAR's not counting to the calculation of the median?
It is your cohort from year 7, so it counts all the people who have dropped out.

#### Zen2613

##### Member
It is your cohort from year 7, so it counts all the people who have dropped out.
Ahh i see, making 99.95s just that bit easier to get !