Premise: A person in a green outfit and helmet is swinging a baseball bat at a tennis ball in front of a fence .
Correct statement: It is impossible that the person has hit ten balls before this one .
Incorrect statement: It is certain that the person has hit ten balls before this one .
Correct statement: Chances are about even that the ball soared into the air and over the fence .
Incorrect statement: It is highly unlikely that the ball soared into the air and over the fence .
Correct statement: It is certain that a person swings a bat in front of a fence .
Incorrect statement: There is almost no chance that a person swings a bat in front of a fence .
Correct statement: We believe that the person is working on his swing .
Incorrect statement: It is highly unlikely that the person is working on his swing .
Correct statement: It is probably not the case that the guy wearing green is learning how to use a bat by hitting a tennis ball .
Incorrect statement: It is highly likely that the guy wearing green is learning how to use a bat by hitting a tennis ball .