Data which was collected by others - Secondary data, A rectangular array of cells which have information in them - A spreadsheet, Any group of objects that we want information on - A population, Data which we collect ourselves - Primary data, A subset of a population - A sample, Continuous data - Data which can have an infinite number of values, Discrete data - Data which can have finite values only, A set of questions designed for gathering information - A questionnaire, Information about some group of individuals - Data,

Statistical Investigation

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