Question

why is it important to use multiple trials in data collection during an investigation?

○ to validate the results and increase confidence

○ to lessen the necessity for making things the same

○ to decrease the reliability of the study

○ to add differences to the outcomes

Explanation:

In scientific investigations, multiple trials help check if results are consistent, validating them and increasing confidence in the findings. The other options are incorrect: multiple trials don't reduce the need for controlled variables (making things same), they increase reliability (not decrease), and aim for consistent results (not add differences).

Answer:

A. to validate the results and increase confidence