Final answer:
Reasonableness should be considered when validating data, as it ensures accuracy and reliability.
Step-by-step explanation:
Reasonableness in Validating Data
When validating data, reasonableness should indeed be considered. Reasonableness refers to checking if the obtained result makes sense and is logical within the context of the problem. In mathematics, this can be done by applying estimation, checking units, and assessing the magnitude of the answer. For example, if the answer to a mathematical problem is an extremely large number when it should be relatively small, it would indicate a mistake in the calculations. By considering reasonableness, one can ensure that the data and solutions are accurate and reliable.