Answer:
Biased.
Explanation:
Anecdotal evidence is described as the evidence that is based entirely upon an individual's personal experiences or observations.
As per the question, a claim based on such evidence is most likely to be biased as anecdotal evidence is based on a limited selection of examples that either support or refute the claim but not supported by any scientific or statistical analysis. Due to this undue bias, anecdotal evidence is not considered reliable as it displays the personal opinion, feeling, or experience of an individual. Thus, it may be used to negate the general statements but not to support r substantiate a claim or argument.