Alternative Equation Formats

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MathML

V a r (\hat{β}) = σ_{y}^{2} {(X^{'} X)}^{- 1}

V a r (\hat{β}) = σ_{y}^{2} {(X^{'} X)}^{- 1}

\[ \mr{Var}( \hat{\bbeta } )= \sigma ^{2}_{y} {( \mb{X}' \mb{X} )}^{-1} \]