Alternative Equation Formats

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MathML

V a r (U) = 4 \sum_{i} \sum_{j} \frac{n_{i j} {(H (X Y) \log (\frac{n_{i \cdot} n_{\cdot j}}{n^{2}}) - (H (X) + H (Y)) \log (\frac{n_{i j}}{n}))}^{2}}{n^{2} (H (X) + H (Y))^{4}}

Math Rendered as SVG

Math as LaTeX Source

\[ \mr{Var}(U) = 4 \sum _ i \sum _ j \frac{ n_{ij} \left( H(XY) \log \left( \frac{n_{i \cdot } n_{\cdot j}}{n^2} \right) - (H(X) + H(Y)) \log \left( \frac{n_{ij}}{n} \right) \right)^2 }{n^2 ~ (H(X) + H(Y))^4} \]