A group of students investigated land use patterns in a Central Business District (CBD) in Nairobi, Kenya. They recorded the type of land use at 50 randomly selected points. Which sampling technique did they use?

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Question

A group of students investigated land use patterns in a Central Business District (CBD) in Nairobi, Kenya. They recorded the type of land use at 50 randomly selected points. Which sampling technique did they use?

Accepted Answer

Random sampling — Award 1 mark for identifying random sampling where points are selected without a pattern or bias. A is incorrect — systematic sampling involves regular intervals. B is incorrect — stratified sampling divides the population into sub-groups. D is incorrect — opportunistic sampling selects convenient locations, not random ones.

Answer

Random sampling

Answer

Systematic sampling

Answer

Stratified sampling

Answer

Opportunistic sampling

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