Premise: A dark-haired gentleman with a mustache and wearing a sweater is simultaneously pressing buttons on an old-fashioned computer monitor and the keyboard .
Correct statement: There is a better than even chance that a gentleman is in his office .
Incorrect statement: There is little chance that a gentleman is in his office .
Correct statement: Chances are about even that a man has just bought an old computer in an auction .
Incorrect statement: It is certain that a man has just bought an old computer in an auction .
Correct statement: It is impossible that a man doing important calculations
Incorrect statement: It is likely that a man doing important calculations
Correct statement: It is probably not the case that a man attempts to fix an old computer .
Incorrect statement: It is certain that a man attempts to fix an old computer .
Correct statement: It is certain that a person is touching a monitor and keyboard at the same time .
Incorrect statement: It is impossible that a person is touching a monitor and keyboard at the same time .