Introduction

This short presentation explores the built-in mtcars dataset using an interactive Plotly visualization.

• Created on: September 27, 2026
• Data: mtcars (fuel efficiency data for 32 automobiles, 1973-74 models)
• Tool: R Markdown + Plotly

The Question

Is there a relationship between a car’s weight and its fuel efficiency (miles per gallon)? Does the number of cylinders play a role too?

Let’s find out with an interactive scatter plot on the next slide — hover over any point to see the car’s name and stats.

Interactive Plot

Takeaways

• Heavier cars tend to have lower fuel efficiency — a clear negative trend between weight and MPG.
• Cars with more cylinders (8) cluster toward the heavy, low-MPG end.
• 4-cylinder cars are lighter and consistently more fuel-efficient.

Thanks for reading — hover around the plot to explore the data yourself!