Alternative Equation Formats

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MathML

r_{D i} = \frac{s i g n (y_{i} - μ_{i}) \sqrt{d_{i}}}{\sqrt{ϕ (1 - h_{i})}}

\[ r_{Di} = \frac{\mr{sign}(y_ i - \mu _ i) \sqrt{d_ i}}{\sqrt{\phi (1 - h_ i)}} \]