Alternative Equation Formats

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MathML

\bar{w} = {\begin{cases} \frac{N_{t} + N_{c}}{N_{t}} = \frac{1}{p_{t}} & for observations in the treated group \\ \frac{N_{t} + N_{c}}{N_{c}} = \frac{1}{1 - p_{t}} & for observations in the control group \end{cases}

Math Rendered as SVG

Math as LaTeX Source

\[ \bar{w} = \left\{ \begin{array}{ll} \frac{N_ t + N_ c}{N_ t} = \frac{1}{p_ t} & \mbox{for observations in the treated group} \\ \frac{N_ t + N_ c}{N_ c} = \frac{1}{1-p_ t} & \mbox{for observations in the control group} \end{array} \right. \]