Answer:
Ethos.
Explanation:
An author employs a variety of persuasive techniques to convince the readers to believe in his claims. Aristotle proposed the three major persuasive appeals: ethos(ethical appeal), pathos(emotional appeal), and logos(logical appeal) that authors employ to persuade the audience.
Ethos is demonstrated as the appeal that convinces the audience by appealing to their ethics by establishing the credibility of his claim.
In the given example, '<u>ethos</u>' is the rhetorical appeal employed by the author as he uses 'the findings of a credible scientific researcher' that would assist him to establish the reliability and ethical character of his claim and appeal to the ethics of the audience to persuade them to accept and believe in his argument and elicit desired response from them.
The angle of the Earth on its axis causing the sun to beam on the Northern and Southern Hemispheres differently.
Answer:
Sample
Explanation:
Samples are used in statistical testing when population sizes are too large for the test to include all possible members or observations. A sample should represent the population as a whole and not reflect any bias toward a specific attribute.