Premise: Man works at microphone with a group of informally attired musicians under the lead of a conductor .
Correct statement: Chances are about even that a band is playing for a wedding .
Incorrect statement: It is almost certain that a band is playing for a wedding .
Correct statement: It is highly likely that some people are practicing music .
Incorrect statement: Chances are slight that some people are practicing music .
Correct statement: There is a very good chance that musicians are playing music .
Incorrect statement: We doubt that musicians are playing music .
Correct statement: It is highly likely that a man with a microphone is gesturing towards a group of people seated behind him .
Incorrect statement: Chances are slight that a man with a microphone is gesturing towards a group of people seated behind him .
Correct statement: It is likely that a man performs a soundcheck .
Incorrect statement: It is impossible that a man performs a soundcheck .