Premise: The dressed up young people are sitting in chairs while they wait .
Correct statement: It is probably not the case that the students are waiting for a program to begin .
Incorrect statement: There is a very good chance that the students are waiting for a program to begin .
Correct statement: There is a better than even chance that impatient people are waiting for something .
Incorrect statement: It is highly unlikely that impatient people are waiting for something .
Correct statement: It is highly unlikely that they are waiting for their parents to finish conversing .
Incorrect statement: It is probable that they are waiting for their parents to finish conversing .
Correct statement: It is impossible that the young people are dressed in tuxedos .
Incorrect statement: Chances are about even that the young people are dressed in tuxedos .
Correct statement: It is highly unlikely that a dressed up young couple sitting in chairs at a school dance .
Incorrect statement: It is almost certain that a dressed up young couple sitting in chairs at a school dance .