Final answer:
A bar graph is better for categorical data like car colors, and histograms are for continuous data. Percentile scores indicate a student's relative performance compared to peers.
Step-by-step explanation:
When you collect data on the color of cars driven by students in your statistics class and want to display the information graphically, a bar graph is typically the better choice. This is because car colors are a categorical variable, and bar graphs are well-suited for showing the frequency of each category. On the other hand, a histogram is used for displaying the distribution of a continuous variable, like income or test scores.
Interpreting percentile test scores, such as your daughter scoring in the 80th percentile in math and the 76th percentile in reading, means that she scored as well or better than 80% of her peers in math and 76% of her peers in reading. These scores indicate that she is above average in both subjects relative to her grade level.