A bar graph displays the number of students in different college majors: Biology, Engineering, History, and Art. Based on this graph, what conclusion can someone draw about the data presented?

• A. The graph indicates the exact age of every student in each major.
• B. The graph shows the average $\mathrm{GPA}$ of students in each major.
• C. The graph displays the relationship between students' heights and their majors.
• D. The most popular major among students is the one with the tallest bar.

Answer: (D)

Verified step by step guidance

1. Understand that a bar graph is used to represent categorical data with rectangular bars, where the length or height of each bar corresponds to the value or frequency of that category.
2. Identify the categories on the graph, which in this case are the different college majors: Biology, Engineering, History, and Art.
3. Observe the height of each bar, which represents the number of students in each major, indicating the frequency or count for each category.
4. Recognize that the tallest bar corresponds to the major with the highest number of students, meaning it is the most popular major among the students.
5. Conclude that the bar graph does not provide information about exact ages, average GPAs, or relationships between heights and majors, but rather shows the distribution of students across different majors.