BRUH

In our school in Germany there was an observation: students who do well in math usually have somewhat worse grades in statistics. While students who were bad at math often did better in statistics.

In grade 12 and 13 it went like algebra, statistics, geometry, geometry (per semester). Basically, you either got A B+ A A, or D B- D D.

Writing this down I realize they should absolutely make a statistical analysis on these results.

It was the same for me, both in school and when studying CS. It's almost as if the difficulty of learning topics is different for everyone.