Premise: Two men stand at a chalkboard that forms part of a stone wall in front of a number of tables and chairs of which only a few are occupied .
Correct statement: It is probable that the two men are giving a presentation .
Incorrect statement: It is improbable that the two men are giving a presentation .
Correct statement: It is highly unlikely that a couple of men are writing equations on a chalkboard .
Incorrect statement: Chances are about even that a couple of men are writing equations on a chalkboard .
Correct statement: It is likely that two men are giving a lecture to a few students
Incorrect statement: Chances are slight that two men are giving a lecture to a few students
Correct statement: It is highly likely that men are working .
Incorrect statement: It is improbable that men are working .
Correct statement: It is impossible that two men present a seminar on flipping houses .
Incorrect statement: It is probably the case that two men present a seminar on flipping houses .