[Jason14h]

Spoiler!

So it would just be the same chance that the wrong seat selector picks the correct seat. Since the minute they pick a wrong seat you have a zero chance to get yours as everyone after them ends up in the wrong seat

So if the wrong seat selector goes first, your chance is 1/100
If he gets on 2nd, its 1/99, etc

But I have been removed from Math too long to put that into a formula

Or I am way off (Most Likely)

EDIT: Thinking a bit more each of the scenarios has the same probability of happening 1/99 - The idiot getting on the plane first or 99th. So its that probability of thr event occuring (getting on plane) vs chance they select correct seat

(1/100 *1/99) + (1/99 *1/99) + (1/98 *1/99) .... ?

I just don't know the proper formula ahah. Or I'm way off