Alternative Equation Formats

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MathML

W_{j} (x) = \frac{1}{\sqrt{K}} \sum_{i = 1}^{K} \sum_{k = 1}^{n_{i}} I (x_{i k j} \leq x) e_{i k}

\[ W_ j(x)=\frac{1}{\sqrt{K}}\sum _{i=1}^ K\sum _{k=1}^{n_ i}I( x_{ikj} \le x)e_{ik} \]