I really hope this can be achieved. Here goes:
I have 6 moodle assignments + quiz which I have set to Scale grading system and Pass/Fail.
In the gradebook, I need it so that if any one of these assignments (or quiz with score less than 5 out of 10) is marked as a fail, its a fail overall for the course.
I have chosen lowest aggregation method on the category I have placed these activities within.
What is happening at the moment, is that it is still showing as a pass if there is one fail within the 7 activities.