You are required to write an essay/ report on the impact of surveyor variability on surveying practice. The report should be reflective, but referenced. There are many academic papers on the topic, searching journals via the Univeristy library website is your first point of call. The report should consider as a minimum: What is surveyor variability? How does it manifest in surveys? How could its effects be mitigated? What could it mean for you, as you go out (or have been) in practice? It is perfectly acceptable to hypothesise examples if you have none of your own. Remember this is a report about surveying, so if you have worked in other specialisms etc you may also need to hypothesise.