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Estimate   (English)

Definition (keystage 1)

A guess which can be justified physically or mathematically; an approximate value of a calculation or measurement

Definition (advanced level)

Value of an estimator in a sample.
Estimates are often assigned Roman letters (e.g. m and s), whereas the equivalent unknown values in the population (parameters) are assigned Greek letters (e.g. μ, σ2. In some books estimates are asigned Greek letters with hat (e.g [^μ], [^(σ2)])

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