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Noun: estimator  'e-stu,mey-tu(r)
  1. An expert at calculation (or at operating calculating machines)
    - calculator, reckoner, figurer, computer
  2. (statistics) a function of one or more random samples from a population that is used to estimate some parameter of the population
    "not all estimators are unbiased"

Derived forms: estimators

Type of: expert

Encyclopedia: Estimator