Horsepower and mileage data from 32 cars in the 1973-74 model were collected by Motor Trend magazine. To determine if horsepower of a car is related to its mileage, I constructed a scatter plot to understand the relationship between the two variables. 

The scatter plot reveals a moderate, curve-linear, negative association between horsepower and mileage of the car. From the plot, we see that cars with more horsepower typically have less mileage.  There appears to be outliers in the data as shown by the red dots that fall outside of the grey area.