Alternative Equation Formats

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MathML

O R = \frac{(n_{11} + 0.5) (n_{22} + 0.5)}{(n_{12} + 0.5) (n_{21} + 0.5)}

MathML rendered with MathJax

O R = \frac{(n_{11} + 0.5) (n_{22} + 0.5)}{(n_{12} + 0.5) (n_{21} + 0.5)}

Math as LaTeX Source

\[ \mathit{OR} = \frac{(n_{11} + 0.5) ~ (n_{22} + 0.5)}{(n_{12} + 0.5) ~ (n_{21} + 0.5)} \]