Premise: Teens dressed as Native Americans sit in the park with their school bags on the ground .
Correct statement: Chances are about even that it is halloween .
Incorrect statement: It is impossible that it is halloween .
Correct statement: Chances are about even that a group of boys are celebrating Native American culture .
Incorrect statement: It is certain that a group of boys are celebrating Native American culture .
Correct statement: We believe that native Americans are eating outside
Incorrect statement: There is little chance that native Americans are eating outside
Correct statement: It is almost certain that teens talking
Incorrect statement: It is highly unlikely that teens talking
Correct statement: It is certain that the teens know something of Native American Culture
Incorrect statement: It is probably not the case that the teens know something of Native American Culture