What is the difference between RMS deviation and standard deviation?

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What is the difference between RMS deviation and standard deviation?

R.M.S = root mean square

2006-07-12 16:34:32 · 3 answers · asked by The Knowledge Server 1 in Science & Mathematics ➔ Other - Science

3 answers

I agree with Vicenti -- "Root Mean Square" is synonomous and interchangeable with "Standard" in the jargon of statistics.

2006-07-12 17:33:56 · answer #1 · answered by Anonymous · 0⤊ 1⤋

They are different. The standard deviation removes the mean before squaring and averaging, whereas the RMS does not. So if a signal (for example) has a large mean with a variation about that mean, the RMS value will include the mean in the measurement, whereas the standard deviation is defined as "the average deviation from the mean" in a mean squared value sense.

2016-01-04 08:41:59 · answer #2 · answered by kardak123 2 · 1⤊ 0⤋

No difference.

2006-07-12 16:48:18 · answer #3 · answered by Vicente 6 · 0⤊ 0⤋