Alternative Equation Formats

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MathML

s_{w}^{2} = \sum_{i} w_{i} {(x_{i} - {\bar{x}}_{w})}^{2} / d

s_{w}^{2} = \sum_{i} w_{i} {(x_{i} - {\bar{x}}_{w})}^{2} / d

$ ~ ~ ~ s_ w^2 = \sum _{i}{w_{i}{(x_{i}-{\overline{x}_ w})}^2} /d ~ ~ ~ $