Alternative Equation Formats

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MathML

X^{2} = \sum_{i} \frac{w_{i} (y_{i} - μ_{i})^{2}}{V (μ_{i})}

X^{2} = \sum_{i} \frac{w_{i} (y_{i} - μ_{i})^{2}}{V (μ_{i})}

\[ X^2 = \sum _ i \frac{w_ i( y_ i - \mu _ i)^2}{V(\mu _ i)} \]