Sample - A part of a population., Population - A whole group being studied., Random Sample - A sample where every member of the population has an equal chance of being in it., Census - A collection of data from the whole population., Biased Sample (or Survey) - The result of collecting a sample from a population that is not random and teThe sample shows favouritism towards a certain part of the population., Primary data - Data you collect yourself, Secondary data - Using data someone else has collected, e.g you get it from a website., Stratified Sample - A sample which divides a population into smaller groups based on member's shared features, e.g. year group, gender etc.,

Collecting and Representing Data Key Vocabulary - Find the Match

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