Premise: Man welding large pipe section while wearing mask .
Correct statement: It is probable that a construction worker is building part of a sewer pipeline .
Incorrect statement: It is impossible that a construction worker is building part of a sewer pipeline .
Correct statement: Chances are about even that a man is wearing goggles .
Incorrect statement: It is certain that a man is wearing goggles .
Correct statement: It is highly unlikely that a person in a green mask .
Incorrect statement: Chances are about even that a person in a green mask .
Correct statement: It is impossible that a man welding a large pipe section for the nearby orphanage .
Incorrect statement: It is probably the case that a man welding a large pipe section for the nearby orphanage .
Correct statement: It is highly unlikely that a man welds a large pipe that burst because it was frozen .
Incorrect statement: It is probable that a man welds a large pipe that burst because it was frozen .