select the correct answer.\nin which of the scenarios can you reverse the dependent and independent…

select the correct answer.\nin which of the scenarios can you reverse the dependent and independent variables while keeping the interpretation of the slope meaningful?\na. as the number of cigarettes smoked in a day increases, the risk for lung cancer increases.\nb. as the age of an infant increases, the height of the infant increases.\nc. as the number of vehicles in a city increases, the amount of pollution in the city increases.\nd. as the concentration of salt in water increases, the density of water increases.\ne. as the number of calls made by a cell phone increases, the cell phone bill amount increases.

select the correct answer.\nin which of the scenarios can you reverse the dependent and independent variables while keeping the interpretation of the slope meaningful?\na. as the number of cigarettes smoked in a day increases, the risk for lung cancer increases.\nb. as the age of an infant increases, the height of the infant increases.\nc. as the number of vehicles in a city increases, the amount of pollution in the city increases.\nd. as the concentration of salt in water increases, the density of water increases.\ne. as the number of calls made by a cell phone increases, the cell phone bill amount increases.

Answer

Brief Explanations:

In option E, if we consider the number of calls as the independent - variable, the slope represents the cost per call. If we reverse them (cell - phone bill as independent variable), the slope represents the number of calls per unit cost. In option A, reversing would mean lung cancer risk causes cigarette smoking which is not logical. In option B, an infant's height doesn't cause its age. In option C, pollution doesn't cause the number of vehicles. In option D, water density doesn't cause salt concentration.

Answer:

E. As the number of calls made by a cell phone increases, the cell phone bill amount increases.