Question

why should you question a statistics source before using it in your speech? to ensure it is a biased source that supports your view to ensure the statistic is from a credible source to ensure it sounds mysterious from an unknown source

Explanation:

When using statistics in a speech, credibility is crucial. A non - credible source may present inaccurate or manipulated data. Biased sources that support a view may not offer objective information, and mysterious sources from the unknown are unreliable. So, one should question the source to ensure the statistic is from a credible place.

Answer:

to ensure the statistic is from a credible source