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An expert at calculation (or at operating calculating machines)
Answer for the clue "An expert at calculation (or at operating calculating machines) ", 9 letters:
estimator
Alternative clues for the word estimator
Word definitions for estimator in dictionaries
WordNet
Word definitions in WordNet
n. an expert at calculation (or at operating calculating machines) [syn: calculator , reckoner , figurer , computer ]
Wikipedia
Word definitions in Wikipedia
In statistics , an estimator is a rule for calculating an estimate of a given quantity based on observed data: thus the rule (the estimator), the quantity of interest (the estimand ) and its result (the estimate) are distinguished. There are point and interval ...
Wiktionary
Word definitions in Wiktionary
n. 1 A person who estimates, especially one who estimates costs 2 (context mathematics English) A function of a random sample of a population used to estimate some parameter of the whole population
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
1660s, from Latin aestimator , agent noun from aestimare "to value" (see esteem (v.)).
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Estimator \Es"ti*ma`tor\, n. [L. aestimator.] One who estimates or values; a valuer. --Jer. Taylor.
Usage examples of estimator.
A quick glance at the estimator showed that he was three light-years from the Zand sun, and eight from the double star, Carox A and B, the next nearest of the Ridge Star suns.
He did well in those Depression years, becoming chief estimator at the Texaco offices.
Thus no critic or estimator of the value of conduct can confine himself to the actor's animus alone, apart from the other elements of the performance.
The decorator wasn’t home so Jeffrey and I had lunch in the kitchen with an estimator and three burly men who had come to replace the dining room windows.
The receptionist was not there, the estimators were not there, not even Belle, his wife, who served as secretary when he didn't want to hire a Kelly Girl, was there.
Officials of Cortlandt, building inspectors, estimators took the stand to describe the building and the extent of the damage.