Kwame is studying the time it takes members of his gym to travel to the gym.
He stands by the door of the gym in the morning and asks the first 50 members as they arrive how long their journey was.
State and briefly describe an alternative method of non-random sampling Kwame could have used to obtain a sample of 50 members.
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.