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A regression equation is determined that describes the relationship between average January temperature (degrees Fahrenheit) and geographic latitude, based on a random sample of cities in the United States. The equation is:
Temperature = 110 - 2(Latitude).
-Suppose that the latitudes of two cities differ by 10. What is the estimated difference in the average January temperatures in the two cities?
A) 2 degrees
B) 10 degrees
C) 20 degrees
D) 90 degrees

Question

Quizplus · Accepted Answer

The difference in temperature is calculated by multiplying the difference in latitude (10) by the coefficient of latitude in the equation (-2), resulting in a 20-degree difference.

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