Alternative Equation Formats

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MathML

\sqrt{Σ_{i = 1}^{n} w_{i} f_{i} (x_{i} - {\bar{x}}_{w})^{2} / (F - 1)}

\sqrt{Σ_{i = 1}^{n} w_{i} f_{i} (x_{i} - {\bar{x}}_{w})^{2} / (F - 1)}

$\sqrt {\Sigma _{i=1}^ n {w_ i f_ i(x_ i-\bar{x}_ w)^2} / (F-1)}$