Final answer:
The specific cumulative average required for the Mary Poppins exemption cannot be determined from the provided refs. Percentile ranking is critical for academic eligibility, but the official requirements should be checked.
Step-by-step explanation:
The main question we are addressing is the necessary cumulative average required to be eligible for the Mary Poppins exemption. The information given in the references provided does not directly mention the Mary Poppins exemption; thus, we don’t have sufficient data to select a specific figure as the correct answer.However, based on the context provided in the references, we can deduce the importance of percentile rankings in academic eligibility for certain honors or exemptions. For instance, it was stated that students whose GPAs are at or above the 96th percentile of all students at their high school are eligible in the local context. Although this is different from the Mary Poppins exemption, the concept of being in a high percentile relates to our main question.In conclusion, without specific information on the Mary Poppins exemption, we cannot definitively say which cumulative average is necessary. It would be advisable for the student to check the official requirements for the Mary Poppins exemption through their school's guidelines or contact a school official directly for the correct eligibility criteria.