My point is that you can't make blanket statements like that.
What does "statistically" even mean..i do STAT in uni and i don't know what he's on about
Physics and Chemistry have fairly similary scalings. However, Economics and Japanese Cont can be quite variable so to be safe, you would need a lower-mid range band 6. ie 92+
You should read the scaling pdf on the Talent 100 site.
For food tech, i highly doubt a 4 unit student will be able to...
If you get your chemistry into band 6, and yoru extension 1 maths abit higher you could be looking at 99.
As for dropping chem, with trials coming up, 75% of your chem mark is still up for grabs. Which means you could still get 90+ quite easily if you dedicate sometime to understanding using...