Premise: A man wearing an unfastened helmet holds himself up on the side of a wall as people look on .
Correct statement: Chances are about even that people watch a skateboard attempt to do a trick .
Incorrect statement: It is almost certain that people watch a skateboard attempt to do a trick .
Correct statement: It is probably not the case that a man is trying to gather himself before he rides his bike
Incorrect statement: It is highly likely that a man is trying to gather himself before he rides his bike
Correct statement: It is unlikely that the helmet may fall off .
Incorrect statement: It is almost certain that the helmet may fall off .
Correct statement: Chances are about even that a construction worker is taking a break while other workers look away .
Incorrect statement: There is almost no chance that a construction worker is taking a break while other workers look away .
Correct statement: Chances are about even that the man is wearing a vest .
Incorrect statement: It is almost certain that the man is wearing a vest .