VisualEditorTest

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$L(F(x))={\frac {\int _{-\infty }^{x}t\,f(t)\,dt}{\int _{-\infty }^{\infty }t\,f(t)\,dt}}={\frac {\int _{-\infty }^{x}t\,f(t)\,dt}{\mu }}$