Premise: A climber is sillhouetted against the sky and rocks as he hangs by a rope from another rock .
Correct statement: It is likely that a climber is happily silhouetted .
Incorrect statement: Chances are slight that a climber is happily silhouetted .
Correct statement: It is impossible that a climber is about to plummet to his death .
Incorrect statement: Chances are about even that a climber is about to plummet to his death .
Correct statement: It is highly unlikely that the climber is listening to music as he climbs .
Incorrect statement: It is probably the case that the climber is listening to music as he climbs .
Correct statement: It is impossible that a climber assesses his option while climbing K2
Incorrect statement: It is almost certain that a climber assesses his option while climbing K2
Correct statement: It is highly likely that climber high in the sky
Incorrect statement: It is improbable that climber high in the sky