Truck Speed vs Gas Mileage An economist wanted to analyze the relationship between the speed of a car ( x )and its gas mileage ( y ). As an experiment a car is operated at several different speeds and for each speed the gas mileage is measured. These data are shown below. 
{Truck Speed vs Gas Mileage Narrative} Determine the least squares regression line.
Definitions:
Nonmedical Prescription
The use of prescription drugs without a medical need or prescription, typically for recreational use or abuse.
Opiate Use
The consumption of opiate drugs, which can include both legal prescriptions for pain or illicit drugs like heroin.
Addiction Potential
Refers to the likelihood that a substance or behavior will lead to addiction.
AOD Use
The consumption of alcohol and other drugs; often discussed in contexts of abuse, dependency, and treatment.
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