Premise: A man is having his teeth inspected by a dentist .
Correct statement: It is likely that a man has a look of worry on his face .
Incorrect statement: It is improbable that a man has a look of worry on his face .
Correct statement: There is a very good chance that the dentist searches for cavities in the patient 's mouth .
Incorrect statement: We doubt that the dentist searches for cavities in the patient 's mouth .
Correct statement: There is a very good chance that a man is seeing a doctor about his tooth pain .
Incorrect statement: There is little chance that a man is seeing a doctor about his tooth pain .
Correct statement: Chances are about even that a man visits the dentist for the first time .
Incorrect statement: It is highly unlikely that a man visits the dentist for the first time .
Correct statement: It is highly likely that a man has a toothache .
Incorrect statement: There is almost no chance that a man has a toothache .