Translations:Digital prediction/8/es

${\begin{aligned}E\left(Z\right)={\frac {{\rm {Z}}\left(f_{k+\varepsilon }\right)}{{\rm {Z}}\left(f_{k}\right)}}={\frac {a^{\varepsilon }{\left(1-aZ\right)}^{-1}}{{\left(1-aZ\right)}^{-1}}}=a^{\varepsilon }.\end{aligned}}$

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