Final answer:
The full scale deflection for VOR is ± 10 degrees and for ILS localizer is ± 2.5 degrees, which corresponds with the pilot's CDI needle deviation.
Step-by-step explanation:
The student's question concerns the full scale deflection for a VOR (VHF Omnidirectional Range) and ILS (Instrument Landing System) localizer. These are both navigation aids used in aviation to help pilots determine their position and align for landings. The correct answer to the degree of full scale deflection for VOR is ± 10 degrees, and for an ILS localizer, it is ± 2.5 degrees. This means that the Course Deviation Indicator (CDI) needle will deflect to the full scale when you're 10 degrees off the VOR course or 2.5 degrees off the ILS localizer course.