What's so complex? You rank your candidates. If your first didn't win, your vote goes to the second, and so on. No "degree in stats" required. They even explain

What's so complex? You rank your candidates. If your first didn't win, your vote goes to the second, and so on. No "degree in stats" required. They even explain very plainly how the rounds went. Begich lost, his votes went to Palin and Peltola, Peltola won.