Recognise systematic, random and stratified sampling choices.
Skills resources are shared. Check your qualification page for its specific assessment conditions.
Sampling methods
This is a generic methods exercise. It does not design an assessed investigation. A complete numbered list makes random selection possible; proportional stratification allocates sample sizes to groups.
Training plan
Detail
Population list
180 numbered addresses
North zone
20% of addresses
South zone
80% of addresses
Stratified sample target
20
Separate systematic demonstration
Start at address 3; take every 5th address
Fictional sampling exercise All values are synthetic.
Resource description
Fictional sampling exercise
Use the resource carefully
State the unit and the part of the resource you used. A pattern in a fictional dataset is evidence for that exercise; it does not establish a fact about a real place.
Check whether an explanation is supported by the data or needs additional geographical knowledge. For statistical tasks, a calculated result does not establish causation or significance by itself.