Premise: A group of motorcyclist are ridding through the streets .
Correct statement: It is likely that there are men and women .
Incorrect statement: It is impossible that there are men and women .
Correct statement: It is probable that the streets were crowded with motorcyclists .
Incorrect statement: It is probably not the case that the streets were crowded with motorcyclists .
Correct statement: It is probably not the case that they are a motorcycle gang .
Incorrect statement: It is likely that they are a motorcycle gang .
Correct statement: Chances are about even that a street overflowing with motorcycles .
Incorrect statement: It is impossible that a street overflowing with motorcycles .
Correct statement: It is unlikely that bikers take their Harleys out on the road .
Incorrect statement: There is a very good chance that bikers take their Harleys out on the road .