check an atar calculator online, it can give you a rough estimate with your marks.
Just wondering why you picked ext eng, pretty sure it's not going to count
I just searched up cs at UNSW and it said Maths ext 1 is assumed knowledge and 4unit is advantageous, I only do ext 1, will I be struggling or disadvantaged? I didn't know cs was this maths based
Idk if this is right but someone told me
Reliability-repetition
Accuracy-apparatus
Validity-variables
So for reliability you need to repeat the experiment
For accuracy you need to check your equipment is up to date, measuring things properly
validity only one variable can be changed at a time...