Skyla
Hi! After the final interview, if you have completed all the documents, it'll take 2-3 weeks for EK to reply. If you have not passed the final interview, they will let you know through e-mail ( there are people who fails the final interview for whatever reason). If you have passed, they will send you through e-mail the medical requirements and they will call you after to discuss the medical process and let you know your departure date. Once you have submitted the medical results, if you have passed, EK will send you the contract a week before your departure. They will send you a reject on the other hand if you have failed the med exam.
There is no ratio whatever on who can pass.. what matters is that applicants passes all their standards, if everyone passes that's fine.
Hope this clarifies things. Patience is a virtue, keep on waiting they'll let you know whatever the outcome is..it just takes time. Goodluck!