Premise: A man with a black baseball cap , blue shorts , gloves and no shirt is standing atop a roof .
Correct statement: It is impossible that a man is surveying land before he starts jogging
Incorrect statement: It is certain that a man is surveying land before he starts jogging
Correct statement: It is impossible that the man is eating a grape .
Incorrect statement: We believe that the man is eating a grape .
Correct statement: It is impossible that he is wearing red gloves .
Incorrect statement: It is probable that he is wearing red gloves .
Correct statement: There is a very good chance that a man has a light black baseball cap .
Incorrect statement: It is improbable that a man has a light black baseball cap .
Correct statement: It is impossible that there is a man cleaning out the gutter on his house .
Incorrect statement: It is almost certain that there is a man cleaning out the gutter on his house .