Premise: Group sitting on a grassy hill resting .
Correct statement: Chances are about even that a group of people are sitting on a grassy hill and resting while they have a picnic lunch .
Incorrect statement: There is almost no chance that a group of people are sitting on a grassy hill and resting while they have a picnic lunch .
Correct statement: It is highly unlikely that the group is all female .
Incorrect statement: Chances are about even that the group is all female .
Correct statement: We believe that a group of friends are resting on a hill .
Incorrect statement: It is unlikely that a group of friends are resting on a hill .
Correct statement: There is a better than even chance that a family is resting on a hill .
Incorrect statement: Chances are slight that a family is resting on a hill .
Correct statement: It is certain that some people are sitting on the grass .
Incorrect statement: It is improbable that some people are sitting on the grass .