Final answer:
To compare the percentages of grades among students in a class, you would use a pie chart. This type of chart visually represents categorical data and shows the proportion each category contributes to the whole, allowing for easy comparison. The correct answer is D.
Step-by-step explanation:
If you wanted to compare the percentages of students in a class that received A's, B's, C's, and so on, you would use a pie chart. A pie chart is an excellent tool for showing the distribution of categorical data, such as grades, among a group by illustrating how the whole class divides into subgroups. Each 'slice' of the pie represents the proportion of students with a particular grade, which allows for easy comparison between the different grade levels.
Pie charts are often used because they provide a visual representation that can quickly convey the relative 'size' or percentage of each category. When analyzing qualitative data, like grades, pie charts help to illustrate what portion of the class falls into each grading category. This visualization aids in understanding how a group is segmented, which in this case is by the grades received.
Moreover, when constructing a pie chart, it's essential to ensure that the percentages are legible and the chart is large enough to clearly depict even smaller segments. Using distinct colors for different categories can enhance the readability and interpretability of the pie chart, making it easier to distinguish between the shares of students in each grade category.