Question

practice 1b
score: 14.67/50 answered: 12/25
question 13
i want to examine the relationship between gas mileage of cars and the engine size (displacement in cubic inches). the explanatory variable is
engine size
gas mileage
relationship between the two
both engine size and gas mileage
neither engine size nor gas mileage

Explanation:

In a relationship between two variables, the explanatory variable is the one that is thought to influence or explain changes in the other variable. Here, engine size is likely to influence gas - mileage. So, engine size is the explanatory variable.

Answer:

A. Engine size