Improved measurements of decays mediated by the $b\to s\ell\ell$ transition at CDF

The CDF collaboration presents updated measurements of branching fractions, polarization, and muon forward-backward asymmetry ($A_{\rm FB}$) in $B\to K^{(*)} \mu\mu$ decays, which are sensitive probes of new physics. The measurements are based on a data set of $\rm 6.7fb^{-1}$. Results of a $\Lambda_b^0 \to \Lambda\mu\mu$ search and an updated measurement of $B_s^0 \to \phi \mu \mu$ branching fraction are also reported.