Alternative Equation Formats

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MathML

{\hat{F}}_{n} (y_{i}) = \frac{1}{N} \sum_{j = 1}^{N} w_{j} \cdot I [y_{j} \leq y_{i}]

\[ \hat{F}_ n(y_ i) = \frac{1}{N} {\displaystyle \sum _{j=1}^{N} w_ j \cdot I[y_ j \leq y_ i]} \]