By verbal reasoning, the pair of words required can be obtained from the
synonyms of the given pair.
Correct response:
Prediction: A prediction is a statement indicating the result to be
expected from a trial or test, based on deductive reasoning from a
theory or hypothesis.
An explanation is a statement describing a phenomenon and is taken as
an hypothesis.
A variable is an outcome of a test or trial, or observation.
A supposition is a held notion or belief that is similar to a hypothesis.
Therefore;
Prediction is to explanation as variable is to supposition.
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