Not huge... I was with a friend who was a marker of assignments in my university... He says that there are always cheaters when he marks the assignments, but it

Not huge... I was with a friend who was a marker of assignments in my university... He says that there are always cheaters when he marks the assignments, but its only 1 or two out of a hundred. He marks only one part of the assignment... so if we suppose there are 5 parts to each assignment and each assignment is copied similarly... the rate of copying is only ~5%, which isn't a "huge amount" IMO. The most worrying is not copying but students outsourcing their assignments. I've googled coding questions before just to find them on rentacoder.com. Just last week a student offered me money to do their assignment for them. (but of course I flatly declined.) I've heard from some first years the market price for completing that assignment was $75.