follow Dictionary.com

What do a.m. and p.m. stand for?

mean square

noun, Statistics.
1.
the mean of the squares of a set of numbers.
Origin of mean square
1835-1845
1835-45
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source

Word of the Day

Difficulty index for mean square

Few English speakers likely know this word

Word Value for mean

6
8
Scrabble Words With Friends