Imagine an election between two candidates.
A receives m votes, B receives n votes, and A wins (m>n).

If the ballots are cast one at a time, what is the probability that A will lead all the way throughout the voting process?

(In reply to re: Formula with partial proof by Ady TZIDON)

Yes.  I'll fix that typo.

Posted by Jer on 2015-10-06 12:58:38