# least squares

### noun Statistics.

a method of estimating values from a set of observations by minimizing the sum of the squares of the differences between the observations and the values to be found.

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Also called least-squares method, method of least squares.

## Origin of least squares

First recorded in 1860–65

## Words nearby least squares

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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## British Dictionary definitions for least squares

least squares

### noun

a method for determining the best value of an unknown quantity relating one or more sets of observations or measurements, esp to find a curve that best fits a set of data. It states that the sum of the squares of the deviations of the experimentally determined value from its optimum value should be a minimum

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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