Premise: Young caucasian man in shorts , t-shirt , helmet and sunglasses mountain biking down a heavily wooded hill .
Correct statement: It is highly likely that a man is on a biking trail .
Incorrect statement: It is probably not the case that a man is on a biking trail .
Correct statement: There is a better than even chance that a young man rides his bike in a competition
Incorrect statement: Chances are slight that a young man rides his bike in a competition
Correct statement: It is impossible that a man is riding a blue bicycle .
Incorrect statement: We believe that a man is riding a blue bicycle .
Correct statement: It is almost certain that the man is riding down the hill .
Incorrect statement: It is highly unlikely that the man is riding down the hill .
Correct statement: Chances are about even that a boy tries mountain biking for the first time .
Incorrect statement: It is certain that a boy tries mountain biking for the first time .