I think it is probable that SOME form of life exists on these planets, but without knowing the probability that life will begin at all, it is hard to say.
As for intelligent life, i.e., capable of civilization and technology, I think that is quite rare. After all, it took 4 billion years for it to develop here on Earth, and the Earth has a lot of lucky advantages, such as a large moon to stabilize its motion, to create tides (making evolution from sea to land creatures easier), large outer planets to shield the Earth from many large comets and meteorites, etc.