Premise: A man in a black sweatshirt and jeans holds a black acoustic guitar and converses with a passerby .
Correct statement: Chances are about even that a man is trying to pass the time before he starts playing his set .
Incorrect statement: There is almost no chance that a man is trying to pass the time before he starts playing his set .
Correct statement: There is a better than even chance that a man holds his guitar and talks to a man who just gave him a tip .
Incorrect statement: It is impossible that a man holds his guitar and talks to a man who just gave him a tip .
Correct statement: It is unlikely that the man with the guitar wants to sing for the passerby .
Incorrect statement: It is probable that the man with the guitar wants to sing for the passerby .
Correct statement: It is probably the case that a street performer with a guitar takes a break to chat with someone walking by .
Incorrect statement: It is probably not the case that a street performer with a guitar takes a break to chat with someone walking by .
Correct statement: It is probably the case that the man is a busker .
Incorrect statement: It is probably not the case that the man is a busker .