Essay
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.
-The following 10 observations of variables x and y were collected.
Find the least squares regression line, and the estimated value of y when x = 3.
Correct Answer:

Verified
Correct Answer:
Verified
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