Premise: The tour guide wore a dark shirt and cap as he pointed out the sign listing the rules to his young passengers .
Correct statement: It is probably not the case that a tour guide is scolding the young passengers .
Incorrect statement: It is probably the case that a tour guide is scolding the young passengers .
Correct statement: It is probable that a tour guide is explaining the rules on a sign and is about to start a tour of a city .
Incorrect statement: Chances are slight that a tour guide is explaining the rules on a sign and is about to start a tour of a city .
Correct statement: It is impossible that the tour guide wore a dark shirt and cap as he pointed out the sign listing the rules to his young passengers on the airplane
Incorrect statement: It is certain that the tour guide wore a dark shirt and cap as he pointed out the sign listing the rules to his young passengers on the airplane
Correct statement: There is little chance that a teacher guided a class
Incorrect statement: It is likely that a teacher guided a class
Correct statement: It is likely that the tour guide used a microphone .
Incorrect statement: We doubt that the tour guide used a microphone .