Premise: Two workers are wearing hard hats while one of them begins to descend into a floor hatch .
Correct statement: There is a better than even chance that two men wearing hats go downstairs
Incorrect statement: It is impossible that two men wearing hats go downstairs
Correct statement: Chances are about even that the men are in constructio
Incorrect statement: It is impossible that the men are in constructio
Correct statement: There is a very good chance that workers are getting ready to work underground .
Incorrect statement: Chances are slight that workers are getting ready to work underground .
Correct statement: Chances are about even that they are working in a mine .
Incorrect statement: It is certain that they are working in a mine .
Correct statement: There is a better than even chance that two construction workers are preparing to leave the area .
Incorrect statement: It is impossible that two construction workers are preparing to leave the area .