mean square

noun

, Statistics.

1. the mean of the squares of a set of numbers.

Word History and Origins

Origin of mean square¹

First recorded in 1835–45

Example Sentences

"Our method considered distortions caused by the perspective between the water space and the image plane. Since the shape of the manatee is closer to an ellipse than a circle, we used AGK to best represent the manatee contour and estimate manatee density in the scene. This allows density map to be more accurate, in terms of mean absolute errors and root mean square error, than other alternatives in estimating manatees' numbers."

From Science Daily

Unlike a standard error, a root mean square error does not easily translate into a traditional statistical confidence interval for the vote count for an individual candidate or the vote differential between two candidates.

From Seattle Times

However, a mean square error is a measure of uncertainty that incorporates the variability associated with the poll estimates, as well as the bias associated with the estimates derived from a nonprobabilty sample.

From Seattle Times

“He rears back and hits me left-handed, and he hit me right over my right kidney, I mean square over it,” Sanders said in the lawsuit.

From MSNBC

“He rears back and hits me left-handed, and he hit me right over my right kidney, I mean square over it,” Sanders said in the lawsuit.

From Salon