Answer: The results are more likely to have errors.
Step-by-step explanation:
An experimental process requires the repetition of a particular step during recording the observations. This process of repetition will allow the development of concordant readings. The similarities in the values of atleast three readings will suggest that the methodology applied is correct and results are accurate and precise. Accepting only one observation to include in the result will lead to inclusion of errors.
Renald completed only one trial of his experiment this will lead to the inclusion of the incorrect observation will likely to include errors in the results.