Root-Mean-Square -- from Wolfram MathWorld
https://mathworld.wolfram.com/Root-Mean-Square.html
WEB3 days ago · Means. Root-Mean-Square. For a set of numbers or values of a discrete distribution , ..., , the root-mean-square (abbreviated "RMS" and sometimes called the quadratic mean), is the square root of mean of the values , namely. where denotes the mean of the values . For a variate from a continuous distribution , (4)
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