CFA ProgramLevel IITA1 Quantitative MethodsChecking your access…←TA1 Quantitative MethodsClass recordingTA18 of 11Wed 15 Oct 2025evening classClass · October 15, 2025←First-Differencing a Time SeriesClass · Oct 18, 2025→With the lessonKey points, the transcript and the notes (41 pp) open with the lesson.