mean square deviation

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noun Statistics.

QUIZ

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Test how much you really know about regular and irregular plural nouns with this quiz.

Question 1 of 9

Which of the following nouns has an irregular plural form?

Origin of mean square deviation

First recorded in 1890–95

I mean, physically, mentally, you know, in every way, shape, and form.
I Tried to Warn You About Sleazy Billionaire Jeffrey Epstein in 2003|Vicky Ward|January 7, 2015|DAILY BEAST
What they actually mean by that is, you know, he actually knows some people that are poor.
Why This Liberal Hearts Huckabee|Sally Kohn|January 6, 2015|DAILY BEAST
What does Bondi mean that clerks now should “determine how to proceed”?
The Back Alley, Low Blow-Ridden Fight to Stop Gay Marriage in Florida Is Finally Over|Jay Michaelson|January 5, 2015|DAILY BEAST
What is most troubling is our – and I do mean “our” and not “their” – never treating these situations as learning opportunities.
In 2015, Let’s Try for More Compassion|Gene Robinson|January 4, 2015|DAILY BEAST

They want Marvin to be as mean and as lonely and as trashy as the characters he portrays.
The Story Behind Lee Marvin’s Liberty Valance Smile|Robert Ward|January 3, 2015|DAILY BEAST
Hilda, trembling at the door, more than half expected Mr. Orgreave to say: "You mean, she's invited herself."
Hilda Lessways|Arnold Bennett
He wanted to tell her that if she called her father, it would mean the end of everything for them, but he withheld this.
The Homesteader|Oscar Micheaux
It was difficult, with the mean appliances of the time, to wring subsistence from the reluctant earth.
The Unsolved Riddle of Social Justice|Stephen Leacock
With Bacon, experientia does not always mean observation; and may mean either experience or experiment.
The Mediaeval Mind (Volume II of II)|Henry Osborn Taylor
My husband detests them; on the contrary, I like those carriages, for they tell me of happy—I mean to say, of former times.
Blackwood's Edinburgh Magazine, Volume 60, No. 372, October 1846|Various