Final answer:
Hospital patients' ratings of their pain on a 0-10 scale represent quantitative data, as they provide a numerical measure of pain intensity.
Step-by-step explanation:
When hospital patients rate their pain on a 0-10 scale, this is an example of quantitative data. This kind of data is numerical and can be ordered or ranked, which allows for measurement on a continuous scale. Although pain is a subjective experience, when it is expressed numerically, it provides a quantifiable value that can be used to assess the intensity of pain.