Osman has 150 employees. He wants to find out what the employees think about the staff canteen.
Osman gets a list of all employees and numbers them 1-150. He picks a random number from 1 to 5 as the starting point. He then selects every 5th person on the list.
Explain why Osman has selected a sample of 30 employees using systematic sampling.
59 exam-style questions on Edexcel A Level Maths Data Collection, covering 1.1 Populations and Samples, 1.2 Sampling, 1.3 Non-Random Sampling, 1.4 Types of Data, and 1.5 The Large Data Set. Each one has a worked solution and a mark scheme showing where the marks go.