Alternative Equation Formats

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MathML

\begin{aligned} E [Y] & = μ_{i} {1 - (ϕ μ_{i} + 1)^{- 1 / ϕ}}^{- 1} \\ V a r [Y] & = (1 + ϕ μ_{i} + μ_{i}) E [Y] - {(E [Y])}^{2} \end{aligned}

Math Rendered as SVG

Math as LaTeX Source

\begin{align*} \mr{E}[Y] & = \mu _ i \left\{ 1 - (\phi \mu _ i + 1)^{-1/\phi } \right\} ^{-1} \\ \mr{Var}[Y] & = (1 + \phi \mu _ i + \mu _ i) \mr{E}[Y] - \left(\mr{E}[Y] \right)^2 \end{align*}