The number of different coloured cars at a car dealership. Bar graph, box plot, circle graph, double bar graph, histogram, line graph, or line plot.

Circle graph.

To represent the number of different colored cars at a car dealership, several types of graphs can be used depending on the specific needs and characteristics of the data. Here are some options:

1. Bar graph: A bar graph can be used to display the number of cars for each color category. Each color would be represented by a separate bar, and the height of each bar would correspond to the number of cars in that color category.

2. Pie chart or circle graph: A circle graph can show the proportions of each color category. Each color would be represented by a slice of the circle, with the size of the slice indicating the percentage of cars in that color.

3. Histogram: A histogram can be used if the data is organized into color categories and the number of cars falling into each category is known. Each color category would be represented by a bar, and the height of each bar would correspond to the frequency or count of cars in that color category.

4. Line plot: A line plot can be used if the data consists of a series of individual car counts for each color. Each data point would be represented by a dot on a number line, and lines can be drawn connecting the dots to show how the counts change over time or other variable.

The choice of graph depends on the specific requirements of the analysis and the attributes of the data you have.