Alternative Equation Formats

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MathML

V a r [\hat{β}] = σ^{2} {(X^{'} W X)}^{- 1}

MathML rendered with MathJax

V a r [\hat{β}] = σ^{2} {(X^{'} W X)}^{- 1}

Math as LaTeX Source

\[ \mr{Var}\left[\widehat{\bbeta }\right] = \sigma ^2 \left(\bX ^{\prime } \bW \bX \right)^{-1} \]

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