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Give examples of two variables that have a perfect positive linear correlation and two variables that have a perfect negative linear correlation.
Choose the correct answer below.
A.Two variables that have perfect positive linear correlation are the price per gallon of gasoline and the total cost of gasoline. Two variables that have perfect negative linear correlation are the distance from a door and the height of a wheelchair ramp.
B.Two variables that have perfect positive linear correlation are the price per gallon of gasoline and the heigt of a wheelchair ramp. Two variables that have perfect negative linear correlation are the distance from a door and the total cost of gasoline.
C.Two variables that have perfect positive linear correlation are the distance from the door and the height of a wheelchair ramp. Two variables that have perfect negative linear correlation are the price per gallon of gasoline and the total cost of gasoline.
D.Two variables that have perfect positive linear correlation are the total cost of weekly groceries and the total cost of gasoline. Two variables that have perfect negative linear correlation are the distance from a door and the number of steps to get through the door.
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