Premise: Two surgeons performing a surgery .
Correct statement: It is highly likely that a doctor makes an incision with a scalpal .
Incorrect statement: We doubt that a doctor makes an incision with a scalpal .
Correct statement: It is probable that two surgeons are men .
Incorrect statement: It is unlikely that two surgeons are men .
Correct statement: It is impossible that two doctors doing a heart transplant
Incorrect statement: Chances are about even that two doctors doing a heart transplant
Correct statement: Chances are about even that the surgeons had been in surgery for hours .
Incorrect statement: It is highly unlikely that the surgeons had been in surgery for hours .
Correct statement: It is highly likely that the two surgeons are performing a surgery on the same person
Incorrect statement: It is unlikely that the two surgeons are performing a surgery on the same person