I know where you`re going, but the chance for that an intelligent liveform has evolved on another planet is small.

First you got the number of planets, then the number of rocky planets, then the number of habitable planets, then the number of habitable planets where life evolved, then the number of habitable planets where complicated liveforms evolved and finally the number of habitable planets where intelligent life evolved.

And so far none rocky planet has been found circling another star, though they undoubtly exist.