Premise: A rock climber hangs from a ledge while others look on .
Correct statement: We doubt that a rock climber hangs from a ledge while others look on because he might fall .
Incorrect statement: It is probable that a rock climber hangs from a ledge while others look on because he might fall .
Correct statement: We believe that a climber is wearing climbing shoes .
Incorrect statement: It is unlikely that a climber is wearing climbing shoes .
Correct statement: It is almost certain that a man climbs a rock
Incorrect statement: There is little chance that a man climbs a rock
Correct statement: It is highly unlikely that a huge person hanging .
Incorrect statement: Chances are about even that a huge person hanging .
Correct statement: There is little chance that people are watching a troubled rock climber hang .
Incorrect statement: It is probably the case that people are watching a troubled rock climber hang .