Georges asked five of his friends how long they studied for the last math test and what grade they received. He found a linear regression equation for the data to be y = 9.6x + 65.8. What does the 9.6 mean in the context of this equation?
The 9.6 represents the slope of the linear regression equation. In the context of this equation, it means that for every additional unit of studying time (x) in hours, the expected increase in grade (y) is 9.6%.
