Solved

Which Is the Correct Formula for the Standard Deviation?
A)ΣX/N $\surd$

Question 27

Multiple Choice

Which is the correct formula for the standard deviation?

A) ΣX/N
B) $\surd$ Σ(X - M) ²/N
C) ΣZx/Zy/N
D) A² + B² = C²

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