A council wants to estimate mean weekday bus-waiting time across a town and across the whole year.
Define a suitable target population.
Describe a sampling structure across place and time and state a consistent measurement rule.
State three limitations or checks that the council should consider.
36 exam-style questions on OCR (MEI) A Level Maths 2.1 Sampling, covering 2.1.1 Population and sample, 2.1.2 Samples to make informal inferences, 2.1.3 Random sampling, 2.1.4 Variety of sampling techniques, 2.1.5 Select or evaluate sampling techniques, and 2.1 Sampling. Each one has a worked solution and a mark scheme showing where the marks go.