Variance

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Variance, σ2, is a measure of the distribution's variability. It is the sum of the squared deviations about the expected value.


Definitions

According to Financial Management Theory and Practice by Eugene F. Brigham and Michael C. Ehrhardt (13th edition),

Variance, σ2. A measure of the distribution's variability. It is the sum of the squared deviations about the expected value.

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