Alternative Equation Formats

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MathML

\sqrt{\frac{1}{N} \sum_{j = 1}^{N} ({\hat{y}}_{j} - y_{j})^{2}}

\sqrt{\frac{1}{N} \sum_{j = 1}^{N} ({\hat{y}}_{j} - y_{j})^{2}}

${\sqrt{\frac{1}{N}\sum _{j=1}^{N}{(\hat{y}_{j} - y_{j})^{2}}}}$