context: It is highly likely that Mary left the milk. Chances are about even that Bill went to the kitchen. There is a better than even chance that Brian is a frog.
hypothesis: Chances are slight that mary left the milk, or Brian is a frog.
valid_hypothesis: It is almost certain that mary left the milk, or Brian is a frog.
invalid_hypothesis: Chances are slight that mary left the milk, or Brian is a frog.
hypothesis_assertion: Mary left the milk, or Brian is a frog.