E = mc squared is a famous equation devised by Albert Einstein that demonstrates the way in which matter and energy are connected. E stands for energy, m stands for mass or matter, c stands for the speed of light.
"Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.
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Albert Einstein
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.
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Albert Einstein
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.