Odds Ajax playing Chelsea in next round?

Hi! Are you a new freelancer good in math and statistics? You will get a good rating and 1 hour of work (2 USD bid only) to provide us with the formula calculating what the odds are of Ajax playing Chelsea in next round. Please check https://www.uefa.com/uefachampionsleague/news/026f-13ac24551ac0-33ad3b5a37c0-1000--champions-league-round-of-16-draw-all-you-need-to-know/ for the draw scheme (16 clubs in total). If you want to see an example of how the draw for knockout phase works, please visit https://draw.inker.one/#/cl/ko/2020.