Final answer:
A pie chart to interpret categorical data about the distribution of students in Key Stage 3 at a school with 200 students.
Step-by-step explanation:
Interpreting data from a pie chart, which is typically addressed within the subject of Mathematics, specifically in the area of data representation and analysis. The data type shown by a pie chart is categorical or qualitative, showing the distribution of quantities in relative percentages. In the context of Key Stage 3 (KS3), a school with 200 students might use a pie chart to display the number of students in different years or classes.
Using the pie chart, one can determine the percentage of the total that each category represents. If the pie chart indicates the number of students in each year as a percentage, you can calculate the exact number of students by applying the percentage to the total number of students, which is 200 in this case.
For instance, if the pie chart shows that 25% of the students are in Year 7, then the number of Year 7 students would be 25% of 200, which is 50 students. Understanding the distribution of students helps in gaining insights into the demographics and can be useful for planning resources and facilities.