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Determine if Two Equations are the Same : σ^2 = Σ ((x[i]-bar-X)^2)/n and σ^2 = Σ (x[i]^2)/n - bar-X^2

Are the two equations the same. If so verify (see attached).
σ^2 = Σ ((x[i]-bar-X)^2)/n and σ^2 = Σ (x[i]^2)/n - bar-X^2

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Solution Summary

Equations are verified to be the same.

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