  Adopting a statistical approach we study the degradation of entanglement of a
quantum system under the action of an ensemble of randomly distributed
Markovian noise. This enables us to address scenarios where only limited
information is available on the mechanisms that rule the noisy evolution of the
model. As an application, we characterize the statistic of entanglement
deterioration for a quantum memory formed by $n$ qudits that undergo randomly
distributed local, uniform, Markovian noise evolution.
