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Edexcel A Level Mathematics (Statistics) Paper 31 Mark Scheme June 20232024 verified correct answers

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Edexcel A Level Mathematics (Statistics) Paper 31 Mark Scheme June 20232024 verified correct answers Disadvantages of systematic sampling - correct answer-A sampling frame is needed+ It can introduce bias if the sampling frame is not random What is stratified sampling? - correct answer-Dividing the population into mutually exclusive groups and then taking random samples from each Population - correct answer-The whole set of items that are of interes Census - correct answer-An o...

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