Premise: Three young men and a young woman wearing sneakers are leaping in midair at the top of a flight of concrete stairs .
Correct statement: It is probable that people leap for joy atop the stairs
Incorrect statement: Chances are slight that people leap for joy atop the stairs
Correct statement: It is unlikely that after exercising , these individuals celebrate by jumping in the air .
Incorrect statement: We believe that after exercising , these individuals celebrate by jumping in the air .
Correct statement: There is a very good chance that some people wearing shoes jump in the sir .
Incorrect statement: It is unlikely that some people wearing shoes jump in the sir .
Correct statement: It is impossible that there are three men and a woman singing .
Incorrect statement: We believe that there are three men and a woman singing .
Correct statement: Chances are about even that these young people are posing for a picture .
Incorrect statement: It is impossible that these young people are posing for a picture .