estimator

n. a quantity calculated from the values in a sample according to some rule and used to give an approximation of the value in a population. For example, the sample mean or average is an estimator for the population mean; the value of the sample mean is the estimate.

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Psychology term of the day

February 16th 2025

arithmetic disability

a disturbance in the ability to calculate that is associated with neurological impairment. See acalculia.