Suppose we developed the following least squares regression equation: Y=3.5+2.1X What of the following statements can we conclude? a. The dependent variable increases 3.5 for an increase of 1 in X. b. The equation crosses the Y-axis at 2.1. c. If X = 5, then is 14 d. There is a significant positive relationship between the dependent and independent variables. The chart below plots maintenance cost vs. the age of cars. The goal was determine if there was a correlation between the age of a car and the cost to maintain it. Which variable is the independent variable? Multiple Choice A. There is no dependent variable B. Age of car C. Maintenance costs D. Both maintenance costs and the age of the car

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