Question: The following scatterplot shows The price and mileage of a sample of 116 used Honda Civics for' sale on The Internet in June 2006.

1. Which variable, price or mileage, is the explanatory variable? Which variable is The response variable?
2. Describe the association between these two variables, commenting on the direction, strength, and form of the association.
3. The slope coefficient of the least squares regression line is -0.0745. Explain what this value means in the context of the car prices and mileage.
4. The intercept coefficient of the least squares regression line is 18,000. Explain what This value means in The context of the car prices and mileage.
5. Give the equation of the least squares regression line. Write this equation in proper form.
6. Use The regression equation to predict The price of a used Honda Civic with 50,000 miles.
7. One of The cars did have a mileage of about 50,000 miles. The price of This car was $15,990. What was the value of the residual for This car?
8. The coefficient of determination for this association between mileage and price is r ² = 0.61. Interpret this number in this context.

Price: $2.99

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