estimator
/ (ˈɛstɪˌmeɪtə) /
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noun
a person or thing that estimates
statistics a derived random variable that generates estimates of a parameter of a given distribution, such as ̄X, the mean of a number of identically distributed random variables X i . If ̄X is unbiased, ̄x, the observed value should be close to E (X i)See also sampling statistic
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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