Alternative Equation Formats

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MathML

\sum_{i \in S} w_{i} (y_{i} - {\hat{β}}_{0 S} - {\hat{β}}_{1 S} x_{i})^{2}

\[ \sum _{i \in S} w_ i (y_ i - \hat\beta _{0S} - \hat\beta _{1S}x_ i)^2 \]