Concept explainers
Interpretation:
The reason due to which the repeated experiments needs to be done to support a hypothesis needs to be explained.
Concept introduction:
A hypothesis is a supposition or proposed theory which has not been verified or confirmed yet. A hypothesis is experimented on to confirm its validity.

Answer to Problem 113A
It is necessary to perform repeated experiments in order to check the consistency of the results so that there are no fluctuations or contradictions to the hypothesis and its validity is secured.
Explanation of Solution
By repeating an experiment one ensure that every time the experiment is conducted on the conditions of the hypothesis consistent results are achieved and the accuracy of the hypothesis is verified.
The above given reasons are why repeating experiments is necessary.
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