Nursing Homework Help Discussion 4 Discussion 1: How does epidemiology helps in researching and addressing population health challenges? Provide a specific contemporary example. at least 250 words with at least one reference and in text citation. Discussion 2: Research a health concern that impacts a population with which you are familiar. How do biostatistics affect the research focus? How do you define the population as your patient? Make sure to include the population and health concern. at least 250 words with at least one reference and in text citation.