Alternative Equation Formats

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MathML

{\hat{μ}}_{1}^{i p w} = n^{- 1} \sum_{i = 1}^{n} \frac{t_{i} y_{i}}{{\hat{e}}_{i}}

\[ \hat{\mu }^{\mr{ipw}}_1 = n^{-1} \sum _{i=1}^ n \frac{t_ i y_ i}{\hat{e}_ i} \]