Tough finish to the week, Cochlear (ASX:COH) rallies despite taking a hit, QBE Insurance (ASX:QBE) reports billion dollar loss The ASX200 (ASX:XJO) dropped 1.3% on Friday, sending the benchmark to a 0.2% loss for the week despite a strong series of company reports. Friday’s weakness was driven by the energy sector, which fell 3.6% and mining, -2.4%,…