Final answer:
A good solution for improving slide visuals is to choose one data visualization per slide. Pie graphs are suitable for showing proportions, while bar graphs are better for comparing actual values.
Step-by-step explanation:
The student's question pertains to the improvement of visual elements in a slide presentation, specifically regarding data visualization. True, a good solution when realizing that the visual elements could be improved would be to choose one data visualization for the current slide and then create another slide for the second data visualization. When presenting data input from researchers A and B in an oral presentation, the selection between a pie graph and a bar graph depends on the type of data and the intended emphasis.
A pie graph is appropriate for showing relative proportions or percentages of a whole, such as the percentage of students in each Hours Played category. Features to point out on a pie graph would include the different segments and colors representing each category, ensuring that the percentages are legible and that smaller sections are visible. Potential display problems to avoid include using colors that are not easily distinguishable or overloading the graph with too much information.
A bar graph is more desirable when it's important to compare the actual values or counts, such as the total number of students in each Hours Played category for researchers A and B. In a bar graph, it would be helpful to note the chronological order of the bars, color differentiation for clarity, and legibility of scale and numbers. To prevent display issues, one should avoid using confusing color schemes or scales that might misrepresent the data's proportions.
In summary, proper data visualization choices can significantly enhance a presentation by providing a clear and immediate understanding of the data being presented, while also addressing accessibility considerations to ensure the content is inclusive for all audience members.