These data report characteristics of 196 types of cars sold in the United States in 2012. One column gives the
(a) Make a scatterplot of these two columns. Which variable makes the most sense to put on the x-axis, and which belongs on the y-axis?
(b) Describe any pattern that you see in the plot. Be sure to identify any outliers.
(c) Find the correlation between these two variables.
(d) Interpret the correlation in the context of these data. Does the correlation provide a good summary of the strength of the relationship?
(e) Use the correlation line to estimate the mileage of a car with 200 horsepower. Does this seem like a sensible procedure? What if the car has a 1.5 liter engine?
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Question Posted: July 14, 2015 08:04:05