An agricultural scientist is investigating the average sugar content of a new variety of sugar beet grown in a 10-hectare field. The scientist uses opportunity sampling, collecting 25 sugar beet plants from the edge of the field closest to the farm track.
Explain why random sampling would have been a better sampling technique for this investigation.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
