A physical science teacher calculates each student's final grades by using the weighted rubric below.

\begin{tabular}{|l|l|}
\hline
Final exam: & [tex]$50 \%$[/tex] \\
\hline
Quizzes: & [tex]$20 \%$[/tex] \\
\hline
Class project: & [tex]$20 \%$[/tex] \\
\hline
Class participation: & [tex]$10 \%$[/tex] \\
\hline
Total: & [tex]$100 \%$[/tex] \\
\hline
\end{tabular}

Which type of graph is best suited to show the breakdown of how this teacher weighs each category?

A. line graph
B. scatterplot
C. pie graph
D. frequency distribution



Answer :

To determine the best type of graph to represent how the physical science teacher weighs each category, let's analyze each option provided:

1. Line Graph:
- Typically used to show trends over time or continuous data.
- Not well-suited for displaying fixed categorical weights.

2. Scatterplot:
- Used to show relationships between two variables by displaying data points.
- Not suitable for showing categorical weights.

3. Pie Graph:
- Displays proportions of a whole.
- Each section (or "slice") represents a percentage of the total, making it easy to see how much each category contributes to the whole.

4. Frequency Distribution:
- Used to show how often values occur within a dataset.
- Not suitable for displaying specific pre-defined weights.

Given these considerations, the best type of graph to show the breakdown of how the teacher weighs each category is a pie graph. A pie graph clearly displays the proportions of the final exam, quizzes, class project, and class participation in a visually intuitive manner. Therefore, the answer is:

Pie graph.