(a1+a2+....+am )2
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The F-test (when used in an Analysis of Variance Problem): F = Mean square between / Mean square within If F=1, Mean square within and Mean square between are almost equal.
Not sure what you mean by "perfect square root".A "perfect square" is the square of a whole number; if that's what you mean, yes, it's the square of the number 1.
No!
When you multiply a number by itself, you square the number. The square of 3 is 9.
What do you mean you can't square it? The square of 187 is 187*187 which is 34969.