Premise: Old guy , looking like Jerry Garcia , playing guitar on stage while others stand behind him .
Correct statement: It is highly unlikely that a Grateful Dead tribute band is performing .
Incorrect statement: There is a better than even chance that a Grateful Dead tribute band is performing .
Correct statement: It is impossible that the guy is a hippie .
Incorrect statement: Chances are about even that the guy is a hippie .
Correct statement: It is highly unlikely that the man is the lead singer in a Grateful Dead cover band .
Incorrect statement: It is highly likely that the man is the lead singer in a Grateful Dead cover band .
Correct statement: There is a very good chance that a man is in a band .
Incorrect statement: It is improbable that a man is in a band .
Correct statement: There is a better than even chance that a man on a stage shows a crowd what a guitar looks like
Incorrect statement: It is improbable that a man on a stage shows a crowd what a guitar looks like