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Principles of Data Science

Group Project

Principles of Data ScienceGroup Project

Data Visualization: Scatterplot with Color Shading

For your group, you will select at least 15 different models and types of vehicles and research the value of a used car for that model in your area.

You can search used car websites such as autotrader.com or cars.com.

The result is you should have at least 15 records where you record the brand, model, type of vehicle, age, and value of the vehicle.

For example, a few rows in the dataset might look like (Table 9.8):

Brand Model Type_of_Vehicle Age Value
Toyota Camry LE Sedan 5 $22750
Ford Expedition SUV 7 $37640
Table 9.8 Used Car Dataset Template

As a group, complete the following steps:

  1. Create a scatterplot of your (x,y)(x,y) data points. Plot the age of the vehicle on the x-axis and plot the value on the y-axis.
  2. Color code the data points according to type of vehicle. For example, color datapoints for sedans using one color, color datapoints for SUVs using a different color, color sports cars using a different color, etc.
  3. Discuss the trend of the scatterplot—that is, do the plotted points follow an upward trend from left to right?
  4. Discuss the information provided by the color coding of the datapoints on the scatterplot.
  5. Could this scatterplot be useful if you were shopping for a used vehicle?
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