Premise: A man is playing an acoustic guitar .
Correct statement: Chances are about even that a person is singing .
Incorrect statement: It is almost certain that a person is singing .
Correct statement: It is highly unlikely that the male is performing his guitar for a crowd .
Incorrect statement: It is almost certain that the male is performing his guitar for a crowd .
Correct statement: There is almost no chance that there is a man playing a black acoustic guitar on a stage .
Incorrect statement: It is likely that there is a man playing a black acoustic guitar on a stage .
Correct statement: It is unlikely that a man is entertaining an audience by playing guitar .
Incorrect statement: It is probable that a man is entertaining an audience by playing guitar .
Correct statement: It is impossible that a man is in competition for guitar .
Incorrect statement: It is likely that a man is in competition for guitar .