Premise: A man in a black shirt and jeans appears to be working on some piping system .
Correct statement: It is impossible that the contractor inspects the water cooling system .
Incorrect statement: It is probably the case that the contractor inspects the water cooling system .
Correct statement: There is a very good chance that a plumber attempts to correct a problem with the plumbing system .
Incorrect statement: It is probably not the case that a plumber attempts to correct a problem with the plumbing system .
Correct statement: It is impossible that the man is tall .
Incorrect statement: Chances are about even that the man is tall .
Correct statement: It is probable that a man working on some old pipes after being told they needed repairing .
Incorrect statement: It is highly unlikely that a man working on some old pipes after being told they needed repairing .
Correct statement: There is a very good chance that a man is fixing a plumbing problem .
Incorrect statement: Chances are slight that a man is fixing a plumbing problem .