Any n where n >0 given how they are dumbed down busywork apparently designed to suck out any remaining intellectual curiousity and consume a teenager's every breathing moment.
Study and just take the exam is what I'll be telling my DD
I tend to agree. Because the College Board approves courses by looking at the
syllabus, it is rather like judging a book by its cover. The actual course curriculum and
content does not necessarily meet any criteria for quality, depth, rigor, or relevance. The College Board website pages for AP provide a list of recommended text books, facilitating self-study.
When a student self-studies or homeschools in preparation for an AP exam, families may be on their own for getting the student scheduled to sit for the AP exam. If a parent creates a transcript for the self-study course, and when a student refers to their self-study, they may not call it an "AP" course as that designation may only come from College Board; rather they may call it prep for AP exam.
Students may also take CLEP exams to earn college credit at some colleges/universities.