If flying squirrels are fearful of the dark.
A prediction that can be tested is a hypothesis. According to the scientific method, a hypothesis is somewhat of an educated guess or a prediction based on something knowledgable.
Potentially, it depends what the opinion is. For example if my opinion was that cheese floats then that can be scientifically tested.
a prediction
hypothesis
hypothesis
jenner tested his prediction on a small boy
No they,are not some are tested on but they are not scientifically createx
is a inference
hypothesis
A hypothesis.
A hypothesis.
A hypothesis.