Premise: A professor explaining a University level lecture .
Correct statement: It is likely that the professor is a woman
Incorrect statement: It is probably not the case that the professor is a woman
Correct statement: It is impossible that a professor is showing a PowerPoint .
Incorrect statement: There is a very good chance that a professor is showing a PowerPoint .
Correct statement: It is impossible that professor talking about sports
Incorrect statement: Chances are about even that professor talking about sports
Correct statement: There is a better than even chance that a Psychology professor giving a lecture .
Incorrect statement: It is impossible that a Psychology professor giving a lecture .
Correct statement: There is a better than even chance that a science teacher explaining planets .
Incorrect statement: It is highly unlikely that a science teacher explaining planets .