An organization of faculty employees which receives a majority of the valid votes cast, calculated on a weighted basis, in an election held in accordance with the rules of this part shall be recognized as representing the faculty employees of Community College District No. 11 pursuant to chapter 28B.52 RCW. If more than one organization of faculty employees has participated in an election and a majority of the valid votes cast, calculated on a weighted basis, has not been either for representation by one of the organizations or for no representation, a run-off election shall be held. In such a run-off, only those two choices receiving the highest weighted number of valid votes cast in the election shall appear on the ballot.