Alternative Equation Formats

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MathML

{\hat{σ}}_{i}^{2} = \sum_{t = 2}^{T} {(Δ y_{i t} - \frac{\sum_{t = 2}^{T} Δ y_{i t}}{T - 1})}^{2} / (T - 2)

Math Rendered as SVG

Math as LaTeX Source

\begin{equation*} \hat{\sigma }_{i}^{2}=\sum _{t=2}^{T}\left(\Delta y_{it}-\frac{\sum _{t=2}^{T}\Delta y_{it}}{T-1}\right)^{2}/\left(T-2\right) \end{equation*}