What type of evidence is considered the most credible in public speaking?

Statistical data is regarded as the most credible type of evidence in public speaking because it is often derived from systematic research, surveys, and empirical studies that provide measurable and verifiable information. This kind of evidence adds weight to an argument by offering numerical support that can be objectively analyzed. It helps to establish patterns, trends, and facts that audience members can trust, as it is grounded in research rather than personal belief or subjective interpretation.

In contrast, personal opinions are inherently subjective and may vary widely between individuals, making them less reliable. Anecdotal evidence, while often engaging and relatable, relies on personal stories or isolated examples which can be anecdotal and may not represent broader truths. General observations lack the rigor of statistical data and can be based on incomplete or biased perceptions. Therefore, statistical data stands out as the most credible form of evidence in public speaking due to its foundational role in persuasive and fact-based communication.