At my university (germany) recently this happend.
The first exam had a failure-rate of 58% (265 paticipants), after the bound to pass was lowered. The second exam had a failure-rate of 93% (111 paticipants).
Obviously the exam was in both cases to hard, and in my opinion this is unfair against everyone who took the exam.
I want to ask, if you can take an action against such results. I have never witnessed so far an exam where the pass-rate was below 50%, and 93% not passing is just absurd.
Can something be done?