11 jurors: 1 vote, for 1 person, then 5-5 for the other 2. That's a tie.
But that seems irrelevant, because according to this it has ranged from 7 to 10:
https://survivor.fandom.com/wiki/Jury
No matter the numbers, with 3 finalists a tie is always possible. As far as I know, the only time it happened the 3rd finalist broke the tie:
https://www.chicagotribune.com/enter...524-story.html