Premise: Children in a classroom are lined up with their hands on each other 's backs , forming a train .
Correct statement: Chances are about even that a class of young children is playing a game together .
Incorrect statement: It is impossible that a class of young children is playing a game together .
Correct statement: We doubt that the children are getting ready for a fire drill .
Incorrect statement: It is likely that the children are getting ready for a fire drill .
Correct statement: Chances are about even that some kids are making a train to leave class .
Incorrect statement: There is almost no chance that some kids are making a train to leave class .
Correct statement: There is almost no chance that the children are quiet .
Incorrect statement: It is certain that the children are quiet .
Correct statement: It is highly unlikely that children are lined up to go on a field trip , and being taught the buddy system .
Incorrect statement: There is a very good chance that children are lined up to go on a field trip , and being taught the buddy system .