Premise: Many two-person kayaks fill a river surrounded by trees .
Correct statement: It is highly likely that people are kayaking down the river .
Incorrect statement: Chances are slight that people are kayaking down the river .
Correct statement: We doubt that many of the kayaks are green .
Incorrect statement: It is certain that many of the kayaks are green .
Correct statement: It is impossible that the people are a boat of the Cheat River Festival .
Incorrect statement: It is highly likely that the people are a boat of the Cheat River Festival .
Correct statement: There is a better than even chance that people are on a kayaking tour .
Incorrect statement: It is improbable that people are on a kayaking tour .
Correct statement: There is almost no chance that someone left the kayaks unattended at the river .
Incorrect statement: It is probable that someone left the kayaks unattended at the river .