Video lessons for 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. 3 lessons matched to the OCR (MEI) A Level Maths (H640) specification, each working through the content and then applying it to exam-style questions in Component 01, Component 02 and Component 03 format. Suitable for A Level Maths.