Alternative Equation Formats

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MathML

Q L (μ, ϕ, y) = \sum_{i = 1}^{n} f_{i} w_{i} \frac{Y_{i} - μ_{i}}{ϕ a (μ_{i})}

\[ QL(\bmu ,\phi ,\mb{y}) = \sum _{i=1}^{n} f_ i w_ i \frac{Y_ i - \mu _ i}{\phi a(\mu _ i)} \]