Premise: A man sitting on the floor next to a broom an bucket .
Correct statement: It is certain that there is a person there
Incorrect statement: It is improbable that there is a person there
Correct statement: There is a better than even chance that a man sits in the janitor 's closet .
Incorrect statement: There is little chance that a man sits in the janitor 's closet .
Correct statement: Chances are about even that the man is short
Incorrect statement: It is almost certain that the man is short
Correct statement: Chances are about even that the janitor is taking a break .
Incorrect statement: It is highly unlikely that the janitor is taking a break .
Correct statement: There is a very good chance that a worker sitting next to his broom and bucket .
Incorrect statement: It is unlikely that a worker sitting next to his broom and bucket .