Alternative Equation Formats

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MathML

σ_{j}^{2} = \frac{1}{N - 1} \sum_{i}^{N} (z_{i j} - {\bar{z}}_{j})^{2}

σ_{j}^{2} = \frac{1}{N - 1} \sum_{i}^{N} (z_{i j} - {\bar{z}}_{j})^{2}

\[ \sigma _ j^2 = \frac{1}{N-1} {\sum _ i^ N(z_{ij} - \bar{z}_ j)^2} \]