A document contains a total of eight entries (number of opportunities). In this unit, each entry is an opportunity for the creation of a defect. The inspection of 5000 documents (total number of units in the group) revealed 175 defects; thus, 96.5% of the documents were good (defect-free). Calculate: a) the defects per unit (DPU) b) the defects per opportunity DPO c) the defects per million opportunities DPMO or parts per million (PPM) d) What is the probability of having Zero defects